Operation Perdition

Operation Perdition, also known as Operation Perdition's Flame, is a multilateral military operation initiated by the Triumvirate (Novayan Stellar Commonwealth, Saiyanese Stellar Federation, and New Roman Empire), Galactic Alliance Defense Initiative, Imternational Union and its Paranormal Forces Coalition, and the Charybdis Organization taking place on Terra. This global military operation focuses on the systematic destruction of the hostile underwater threats known as the Seaborn and its affiliated Church of the Deep as well as the demons of the northern tundra and southern deserts.
OPF was first developed and commenced after a Triumvirate-GADI-IU-Charybdis conference with the leaders of the world of Terra whose nations and peoples (minus Aegir, or Ægir) released information on threats posed on Terra by the demons and Seaborn. After studies and researches confirmed their existences a multilateral military operation was authorized and commenced to reduce the numbers of demons and Seaborn through initial overwhelming orbital and thaumaturgical bombardment and then devastating aerial bombardment. Ground forces were stationed across the borders to the northern tundra and southern deserts while thaumaturgical troops, paraweapons and eigenweapons were deployed en masse against the Seaborn.
Prior to the start of the military operation, Novayan-led expeditionary forces under Lord Admiral Borealis I launched Operation Hercules, a three-pronged military operation first consisting of Operation Great Walls and Operation Sea Walls: the first operation was to pummel the demons in the northern tundra and southern desert through a series of overwhelming orbital, thaumaturgical, artillery and aerial bombardments and heavy aerial saturation bombings and heavy defensive fortifications; the second operation was to poison the coastal waters and neighboring surface land areas with thaumaturgically-enhanced poisons, taints and nuclear radiation to deny the Seaborn entry while reality distortion para/techs and defensive fortifications were deployed in addition to a disproportionately high number of ground troops and air units. Operation Sea Walls is more notable due to the coastal defenses consisting of heavily-fortifiez bunkers, strongholds and fortresses, deep defense architectures, strategic exclaves, staged killing fields and high numbers of gun emplacements, thaumaturgical weapons systems and weapons batteries being posted throughout the fortifications. In addition to the dumping of toxic wastes, deadly nuclear and thaumaturgical wastes, and exceptionally powerful poisons, and combined with a high number of chemical, biological, radiological, nuclear, incendiary and thaumaturgical weapons, Operation Sea Walls is the most well-planned and -designed of the two pre-OPF operations. Operation Fire Walls, the third part and a last-minute addition of Operation Heracles, is centered around a number of highly and heavily-fortified city-sized fortresses consisting of individual bunkers and strongholds, gun emplacements, weapons batteries, thaumaturgical systems and so on.
OPF consisted of seven tandem operations: Operation Damocles (Triumvirate), Operation Terra's Honor (Novaya), Operation Terranian Freedom (Saiyane), Operation Cataulanian Plains (Nova Roma), Operation Terra's Light (GADI), Operation Sword of Perdition (IU/PFC), and Operation AQUARIAN DISCO (Charybdis). All seven operations were independent from each other but sometimes those from either operations cooperate with each other. The only operation that cooperates out of necessity and yet remain independent from all others was Operation Hercules, which stood out the most and is distinguished by the near-gargantuan and almost herculean effort at preparing for the eventual war against the Seaborn and the sheer size of the Novayan expeditionary forces that were pulled in from various Military Staging Grounds, as well as being more known by the fact it falls under the jurisdiction of Lord Admiral Borealis I and the Novayan East Indies' military governor.
==Operation Hercules==
Out of all these military operations, Operation Hercules stood out the most due to the fact Novayan expeditionary forces from various Military Staging Grounds converged on Terra. It also stood out the most because of the fact it saw the largest and heaviest military expenditures spent on constructing military bases and fortifications. Even before it was commenced, Novayan forces began organization unmanned reconnaissance operations to ascertain the threats of the Seaborne and demons for some time; after Novayan forces drove back and either defeated or annihilated One Sith forces attempting to take over and before that the Terranians were fully evacuated, large-scale military deployments preceded the blatantly herculean construction efforts in establishing military bases and fortifications. To date, Operation Hercules is considered by many as the largest and most massive operation, with about 3-5.8 billion military personnel present; it is also considered by many as a hybrid of the Hindenburg, Siegfried and Maginot lines, Cadia's kasrs, and the German national redoubt.
===Preparations===
====Seaward Defenses====
The plan calls for the deployment of proximity "seaweed" naval mines and non-"seaweed" naval mines scattered and placed haphazardly, intricately, elaborately and randomly throughout the continental shelves, coasts and shores in layers of forty to fifty. Fleets, flotillas or even armadas of airships, helicopters and dropships were deployed to dump deadly nuclear, thaumic and thaumonuclear wastes as well as all kinds of oil all across coastal areas to make it incredibly poisonous and hazardous for the Seaborn.
Any and all beaches not on islands were to be worked on to allow for the establishment of trench lines and fortifications, as well as weapons emplacements and gun batteries. Secure bunker, fortress and stronghold complexes were also built to be able to allow Novayan combat ground forces to fire from within, as well as serving as combat redoubts. High-yield proximity mines were placed randomly and haphazardly all across the kill zones between and in front of the trench lines and fortifications. Mortars were placed to allow for heavy saturation bombing attacks, while artillery were used to shatter large formations of Seaborn; chemical, biological, incendiary and thaumaturgical as well as thaumonuclear munitions were stored to induce hideous amount of casualties upon the Seaborn. The beaches would also be worked to be sloped, thereby allowing Novayan combat ground forces the advantage of providing their comrades fire support.
To help support the coastal defense forces induce horrific casualties, air support was made readily available as well as Arms Forts, which Lord Admiral Borealis I secured the designs and blueprints from the League of Ruling Corporations. The Arms Forts used in the seaward defenses were Eclipse-class, Land Crab-class, Giga Base-class, and Cabracan-class Arms Forts. Military aerial warships used to help provide combat and air support were Aigaion-class, Kottos-class and Gyges-class aerial warships. Airborne aircraft carriers were also present to allow for mission sorties. Mobile (self-propelled) rtillery and rocket artillery were also present next to the Arms Forts to ensure that long-range fire support was provided.
The fortresses, strongholds, pillboxes and bunkers were fortified and have vision slits for windows and reinforced buttresses. Pillboxes and bunkers were placed behind the trench lines to allow machine gunners and heavy weapons teams to rake the Seaborn. Should the outermost trench line and its occupants find themselves about to be overwhelmed, heavy fire and air support as well as mobile reinforcements were called in to force back the Seaborn; breaches must be plugged, with the Seaborns responsible pushed back. In the likely case Novayan soldiers were unable to force back the Seaborn, hold their positions and finding themselves overwhelmed, each trench line had been heavily rigged with explosives and incendiaries to buy more time for the troops to evacuate to the second trench line, after which the overwhelmed trench line would be lit with fire that cannot be burned out and are highly dangerous even for both Seaborn and Novayan soldiers. Those who were wounded but unable to fight had to be evacuated.
The last two trench lines were equipped with underground rooms to allow the soldiers to evacuate into bunkers, strongholds, fortresses and pillboxes behind the final trench line. To prevent the Seaborn from following them into the underground rooms and tunnels, all but few rooms and tunnels were rigged to detonate, with the remainder being used to find soldiers who were unfortunately left behind. The rooms and tunnels were designed to be not found by the Seaborn.
After the final trench line had been overrun, combat ground forces regrouped at the bunkers and complexes that surround the strongholds and fortresses, where they would fire at the Seaborn to whittle their numbers until such a time it is possible to enter the fortified structures. Each pillbox and bunker were equipped with sorts of military equipment capable of inducing large amounts of Seaborn casualties and had been directly linked to the fortresses, strongholds, bunkers and pillboxes located in the Safe Zones via underground tunnels. These fortifications were hardened and reinforced to allow the occupants to survive, and had been equipped with amenities necessary to provide the soldiers timeout from performing combat duties.
Meanwhile, the Safe Zone fortifications were used as combat redoubts to help house the wounded and inflict innumerable casualties upon the Seaborn. Heavily reinforced, hardened and strengthened and with numerous weapons emplacements and gun batteries as well as multiple dangerous weapons both mundane and esoteric, the Safe Zones were considered to be the "final bosses" the Seaborn will have to defeat. Even if they managed to make a breach, the Seaborn will have to contend with the various rooms, hallways and corridors that were not only designed to be pillboxes but also double as kill zones. Even worse, the fortresses and strongholds had hidden rooms, corridors and tunnels which were used to allow combat personnel to help reach their comrades and kill more of the Seaborn. Lastly, should any of the fortresses and strongholds were being overrun, the wounded and then remaining combat troops were to be evacuated into underground tunnels which lead north towards the Evacuation Points, located next to the Arms Forts where awaiting dropships, helicopters, APCs, IFVs and trucks await them.
Originally supposed to be designed for defenses against the Seaborn, the seaward defense installations were also used as a double-edged sword: not only is it used in the defense of Terra, but also used as offensive weapons. In this case, should the Seaborn be forced to retreat, they would find themselves caught between the newly-repaired and hastily-manned coastal fortifications and advancing combat air and ground forces.
====Inland Defenses====
Further inland, numerous military bases and fortifications were constructed as well as earthworks being made to help slow the advancing Seaborn.
After the seaward defenses were completely and fully abandoned by the Novayan expeditionary forces, who left the Safe Zone defense structures still manned, supplied and equipped to reduce the Seaborn's numbers and still supported by heavy air support, a network of bonfire-pillars were lit to let everyone up inland know what is happening. Further inland, a number of military bases were put on full alert and mobilized its mobile forces to back the retreating expeditionary forces after lighting up the bonfire-pillars to signal the rest of the now gargantuan-in-numbers Novayan forces. Meanwhile, the remainder of the expeditionary troops that weren't part of the mobile response forces would man the fortifications and trenches which surround each military base. Such fortifications have underground tunnels that connect to each other and have underground armories which contain chemical, biological, radiological, nuclear, incendiary and thaumaturgical weapons.
The seaward expeditionary defense forces would regroup at each military base, followed by the mobile response forces which remain behind to provide cover through a mixture of mobile warfare, superior firepower and overwhelming air support. The now-combined expeditionary forces would man defensive lines from north to south consisting of combat outposts as the first line of defense, strong points (bunkers and pillboxes) as the second line of defense, trenches and fortifications as the third line of defense, forward operating bases, fire support bases and their associated fortifications as the fourth line of defense, and finally the military base and its associated fortifications as the final line of defense. A "sixth" line of defense technically exists, though they merely serve as main operating bases with a few forward operating bases and several fire support bases, and has the "onion defense layers", which consisted of fortifications, trenches and combat outposts. Mortars, machine guns, semi/automatic grenade launchers, flamethrowers and chemical throwers were placed in the first three defense layers, with artillery (both shell-based and rocket-based ones) found in the fourth and fifth defense layers.
The Arms Forts that accompanied the expeditionary forces would move to the north to act as combat support and be reinforced by additional Arms Forts such as a few/several Spirit of Motherwill-class, Great Wall-class and Answerer-class Arms Forts. The Spirit of Motherwill-class Arms Forts were placed in strategic locations where it could provide extreme long-range fire support to defending, assailing or retreating expeditionary forces. Should the defenders be forced to retreat to the military bases and fortifications to hold out against the Seaborn, the Arms Forts minus those Answerer-class Arms Forts and their assigned mobile artillery units and available air forces were given full permission to commence overwhelming bombardment upon the Seaborn. Answerer-class Arms Forts were ordered to advance south to unleash thaumaturgical bombardment upon Seaborn-overrun areas to support the expeditionary forces who were still holed up in the heavily-fortified and -hardened defense structures, firing from arrowslits, vision slits and murder holes. Many slow-moving Arms Forts can also be used to house ground units that couldn't evacuate in time, leading to them stationed on the dorsal decks. Spirit of Motherwill-class Arms Forts were also used to allow a place to land, refuel and rearm helicopters at, as well as allowing the infantry on the decks to fire mortar, artillery, rocket/missile, flamethrower, chemical thrower and grenade rounds at the Seaborn.
Further inland, the Novayan expeditionary forces would be far more prepared due to having multiple fortifications built in the Barrenlands, especially the cliffs, canyons, mountains and high grounds. Before construction, Novayan forces deployed thaumaturgical stabilization units to stabilize the originium ores and prevent them from destabilizing that would result in an explosion. There, the retreating expeditionary forces would be provided covering fire by the inland defense forces, utilizing sniper rifles, machine guns, automatic grenade launchers, missile/rocket launchers, mortars, chemical throwers, flamethrowers and artillery in addition to heavy air support. The fortifications were built into the canyons and mountains, and were linked by underground tunnels and have munition dumps and armories for infantrymen.
Should the defenses there be breached, the defense forces would need to hold out in the fortifications (also designed to be heavily-fortified and hardened against any and all Seaborn attacks) while the expeditionary forces retreat towards city-sized fortresses. They are similar to the Cadian kasrs as said in the WH40K Lexicanum wiki:
:"Each Kasr was protected by powerful Void Shields capable of withstanding days upon days of punishing orbital bombardment. They were encircled by rings of massive earthworks studded with gun emplacements and weapons batteries, separated by an inner moat. Passage over the moat was controlled by hydraulic bascule bridges, each one guarded by a heavily armed barbican, and defended by the many armored fortifications and shatrovies overlooking it. Once inside, the streets of each Kasr were laid out in elaborate geometric patterns, from the air resembling an intricate puzzle. Every building was constructed to act as a strongpoint in the city's defense: ammunition dumps stored in the underground bunkers of bakeries, gun emplacements on public auditoriums, hab-blocks with reinforced buttresses and vision slits for windows, living rooms which doubled as pillboxes, bastions with rooftop landing pads."
The only difference is that such city-sized fortresses don't really have civilians, but rather military personnel acting as military garrisons. Because of this, the Novayan forces stationed in such fortresses were urban warfare specialists equipped with different military equipment. The fortresses also have tesla coils and were made of reinforced neo-concrete, allowing ground forces and downed pilots to hold out for much longer.
===Timeline===
It was only after the Seaborn commenced the next invasion to bring forth the Second Profound Silence did the Seaborn find themselves checked by a military of unparalleled power.