Write a realistic, plausible alternate history scenario in the form of a history book chapter completely set in the world of the alternate history scenario with absolutely no references to real life, OTL or that this is even an alternate history timeline at all, in which after the collapse of the Berlin Wall separating the federal constitutional parliamentary republic of the Federal Republic of Germany in West Germany from the Soviet puppet state of the far-left communist, Marxist-Leninist post-21 April 1946, pre-16 December 1989 Socialist Unity Party of Germany-ruled, pre-7 October 1949, post-3 October 1990 dictatoral communist republic of the German Democratic Republic in East Germany in 1989, and the subsequent reunification of Germany via the absorption of the GDR into the FRG after the collapse of the Berlin Wall the  German Royal House of Hohenzollern-ruled, pre-1525, post-1945-1947 federal parliamentary semi-constitutional royal monarchy of the Kingdom of Prussia ruling over much of modern-day eastern Germany and Western Poland along with Russian Kalingard-dominated, post 1871, pre 1919 Federal parliamentary semi-constitutional monarchy of the German Empire is [the German Empire] restored [the German Empire] as the government [the German Empire] of post Berlin War Germany with its [the German Empire's] pre-1919 territorial integrity restored, [the German Empire being restored as the government of post-Berlin Wall Germany] due to a series of loopholes in the "2+2" Treaty, and a clause in the FRG’s in West Germany’s constitution stating that the only government of a united, post-Berlin Wall, post-FRG, post-SUPG-ruled GDR united Germany could only be the Deutsches Reich [ the Royal House of Hohenzollern-ruled German Empire] as the Reich, [ the Royal House of Hohenzollern-ruled German Empire] was [ the Royal House of Hohenzollern-ruled German Empire] not dissolved by the events of 1919, but [ the Royal House of Hohenzollern-ruled German Empire] only put in suspension, making all other governments of Germany post-1919 illegitimate and/or occupational regimes of the one true Germany  [ the Royal House of Hohenzollern-ruled German Empire] done by hostile powers, and that the restoration of the Reich  [ the Royal House of Hohenzollern-ruled German Empire] as the government  [ the Royal House of Hohenzollern-ruled German Empire] of united, post-Berlin Wall, post-FRG, post-SUPG-ruled GDR united Germany must [the restoration of the Royal House of Hohenzollern-ruled German Empire as the government of a united, post-Berlin Wall, post-FRG, post-SUPG-ruled GDR united Germany] be [the restoration of the Royal House of Hohenzollern-ruled German Empire as the government of a united, post-Berlin Wall, post-FRG, post-SUPG-ruled GDR united Germany] done [the restoration of the Royal House of Hohenzollern-ruled German Empire as the government of a united, post-Berlin Wall, post-FRG, post-SUPG-ruled GDR united Germany] via referendum and/or by free, and fair, democratic multi-party elections, 
with both the USA and the USSR having to withdraw their [the USA's and the USSR's] respective militaries, the combined land warfare, aerial combat and naval warfare forces of the USA, the US Armed Forces, and the post-WW2, post-25 February 1946, pre-26 December 1991-24 December 1993 combined ground combat, aerial warfare and naval warfare division of the Soviet government, the Soviet Armed Forces, from the newly restored German Empire.


The Germans then restore the German Empire's post-1871, pre-1919 unified ground and air force, the Imperial German Army from the FRG's post-12 Novembeand a clause in the FRG’s in West Germany’s constitution stating that the only government of a united, post-Berlin Wall, post-FRG, post-SUPG-ruled GDR united Germany could only be the Deutsches Reich [ the Royal House of Hohenzollern-ruled German Empire] as the Reich, [ the Royal House of Hohenzollern-ruled German Empire] was [ the Royal House of Hohenzollern-ruled German Empire] not dissolved by the events of 1919, but [ the Royal House of Hohenzollern-ruled German Empire] only put in suspension, making all other governments of Germany post-1919 illegitimate and/or occupational regimes,r 1955, pre-3 October 1990 unified armed forces, the Bundeswehr [Federal Defence |Bundeswehr|] and the GDR's post-1 March 1956, pre-2 October 1990 armed forces and the SUPG's  post-1 March 1956, pre-2 October 1990 armed wing, the Nationale Volksarmee [National People's Army |Nationale Volksarmee|].


The Imperial German Army's  domestic counterintelligence branch also dealing with foreign intelligence with additional roles in  in media censorship and propaganda, Abteilung III b, [Abteilung III b] is [Abteilung III b] restored through the FRG's federal intelligence agency and domestic intelligence service responsible for military counterintelligence within the Bundeswehr, whose primary tasks include securing German troops, camps and facilities against external threats and also for vetting new members of the armed forces and monitors them for extremism and possible espionage, the Militärischer Abschirmdienst [Military Counterintelligence Service],  the foreign intelligence agency of the Federal Republic of Germany, directly subordinate to the Chancellor's Office, acting as an early warning system to alert the German government to threats to German interests from abroad, depending heavily on wiretapping and electronic surveillance of international communications, collecting and gathering information on a variety of areas such as international non-state terrorism, weapons of mass destruction proliferation and illegal transfer of technology, organized crime, weapons and drug trafficking, money laundering, illegal migration and information warfare  in addition to gathering both military and civil intelligence, the Bundesnachrichtendienst [Federal Intelligence Service |Bundesnachrichtendienst|], the Federal Republic of Germany's federal domestic intelligence agency tasked with intelligence-gathering on efforts against the liberal democratic basic order, the existence and security of the federation or one of its states, and the peaceful coexistence of peoples; with counter-intelligence; and with protective security and counter-sabotage,  investigating efforts and activities directed against the federal level of Germany or transnational, in matters of foreign policy significance and at the request of a state authority for the protection of the constitution,  the  Bundesamt für Verfassungsschutz [the Federal Office for the Protection of the Constitution |Bundesamt für Verfassungsschutz|] along with the GDR's state security, domestic secret police organization and foreign intelligence service, the Ministerium für Staatssicherheit [Ministry for State Security]. 

After the restoration of the German Empire's naval warfare force from the FRG's and GDR's respective navies, the naval intelligence department of the German Imperial Admiralty Staff or Admiralstab between 1901–1919, being able to recruit a worldwide network of agents, drawing on the resources of German shipping companies and the German diplomatic service,  having established a global "war intelligence system"  which was intended to provide a flow of intelligence on foreign naval movements in the event of war or heightened tension, the Nachrichten-Abteilung.