Question: What war was the basis for the Milton Bradley Board game that modeled it's tanks after a tank sometimes referred to as the "Mark V"?

full_context: Document 1: 7.5 cm KwK 42: The 7.5 cm KwK 42 L/70 (from "7.5 cm Kampfwagenkanone 42 L/70") was a 7.5 cm calibre German tank gun developed and built by Rheinmetall-Borsig AG in Unterlüß during the Second World War. The gun was used to equip the SdKfz.171 Panzerkampfwagen V Panther medium tank and the SdKfz.162/1 Jagdpanzer IV/70(A)/(V) tank destroyer. When mounted on a tank destroyer it was designated as the 7.5 cm Pak 42 ("7.5 cm Panzerabwehrkanone 42") anti-tank gun.
Document 2: Panzer division: The term "panzer division" (German: "Panzerdivision" ) as commonly used in English language refers almost exclusively to the armored (tank) division in the army branch of the Wehrmacht and of Nazi Germany during World War II. The panzer divisions were the key element of German success in the Blitzkrieg operations of the early years of the war. Later the Waffen-SS formed panzer divisions, and even the Luftwaffe fielded a panzer division, the Herman Goring Division. The term "Panzerdivision" is still used in today's Army of the Bundeswehr (for example 1. Panzerdivision). In German speaking countries the term is not immediately associated with the Wehrmacht as it is in English speaking nations, as the word simply means 'armored division' and has no additional connotation.
Document 3: Advanced Squad Leader: Advanced Squad Leader (ASL) is a tactical-level board wargame, originally marketed by Avalon Hill Games, that simulates actions of approximately company or battalion size in World War II. It is a detailed game system for two or more players (with solitary play also possible). Components include the ASL Rulebook and various games called modules. ASL modules provide the standard equipment for playing ASL, including geomorphic mapboards and counters. The mapboards are divided into hexagons to regulate fire and movement, and depict generic terrain that can represent different historical locations. The counters are cardboard pieces that depict squads of soldiers, crews, individual leaders, support weapons, heavy weapons, and vehicles.
Document 4: 4th Panzer Army: The 4th Panzer Army (German: "4. Panzerarmee") was, before being designated a full army, the Panzer Group 4 ("Panzergruppe 4"), a German panzer army during World War II. Its units played a part in the invasion of France, and then on the Eastern Front.
Document 5: 503rd Heavy Panzer Battalion: The 503rd Heavy Panzer Battalion (abbreviated "s.Pz.Abt. 503") was a German heavy Panzer "Abteilung" (a battalion-sized unit) equipped with Tiger I tanks and Panzer IIIs. In 1944, it was re-equipped with the new Tiger II. The battalion saw action on the Eastern and Western Fronts during World War II. As with other German Heavy Panzer Detachments, it was normally not assigned to a single corps, but shuffled around according to war circumstances. Later the battalion became part of the newly formed Panzer Corps Feldherrnhalle as the Feldherrnhalle Heavy Tank Battalion.
Document 6: Panzer VIII Maus: Panzerkampfwagen VIII Maus ("Mouse") was a German World War II super-heavy tank completed in late 1944. It is the heaviest fully enclosed armoured fighting vehicle ever built. Five were ordered, but only two hulls and one turret were completed before the testing grounds were captured by the advancing Soviet forces.
Document 7: Stratego: Stratego is a strategy board game for two players on a board of 10×10 squares. Each player controls 40 pieces representing individual officer ranks in an army. The pieces have Napoleonic insignia. The objective of the game is to find and capture the opponent's "Flag", or to capture so many enemy pieces that the opponent cannot make any further moves. "Stratego" has simple enough rules for young children to play, but a depth of strategy that is also appealing to adults. The game is a slightly modified copy of an early 20th century French game named "L'Attaque". It has been in production in Europe since World War II and the United States since 1961. There are now 2- and 4-handed versions, versions with 10, 30 or 40 pieces per player, and boards with smaller sizes (number of spaces). There are also variant pieces and different rulesets.
Document 8: Battle Masters: Battle Masters is a board game by Milton Bradley made in collaboration with Games Workshop in 1992. It is a game that simulates the type of battles as seen in "Warhammer Fantasy Battle", but with much simpler game mechanics not based on its parent game. The game, like its sibling Milton Bradley/Games Workshop partnerships "HeroQuest" and "Space Crusade", was designed by Stephen Baker, who later went on to design the popular game "Heroscape".
Document 9: Squad Leader: Squad Leader is a tactical level board wargame originally published by Avalon Hill in 1977. It was designed by Hall of Fame game designer John Hill and focuses on infantry combat in Europe during World War II. One of the most complex wargames of its time, "Squad Leader" is the natural extension of the trend towards greater realism (and hence complexity) initiated by several earlier games, including Avalon Hill's own "PanzerBlitz" and "Panzer Leader". Those two earlier games were slightly larger in scope, with counters representing platoons and map hexes measuring 250 metres across, compared to Squad Leader's 40 meter hexes and squad sized units.
Document 10: 5th Panzer Army: The 5th Panzer Army, also known as Panzer Group West and Panzer Group Eberbach (German: "5.Panzer-Armee", "Panzergruppe West", "Panzergruppe Eberbach") was a panzer army which saw action in the Western Front and North Africa. The remnants of the army surrendered in the Ruhr pocket in 1945.
Document 11: Tank Battle: Tank Battle is a Milton Bradley board game of strategy where players attempt to out-guess and out-maneuver their opponent in a contest of armored warfare, and includes the extra strategy brought by fuel and ammunition dumps as well as anti-tank guns and mines. The playing pieces are modeled after actual World War II tanks of the Americans and Germans, these being the M4A3 Sherman Medium Tank and the Panzerkampfwagen V Panther Ausf. G.
Document 12: Axis &amp; Allies: Axis & Allies is a series of World War II strategy board games. Originally designed by Larry Harris and published by Nova Game Designs in 1981, the game was republished by the Milton Bradley Company in 1984 as part of the "Gamemaster Series" of board games. This edition has been retroactively named Axis & Allies: Classic to differentiate it from later revisions. In 1996, "Axis & Allies: Classic" was inducted into the Academy of Adventure Gaming Arts & Design "Adventure Gaming Hall of Fame". "Games" magazine also has inducted "Axis & Allies" into their buyers' guide Hall of Fame, an honor the magazine extends to "games that have met or exceeded the highest standards of quality and play value and have been continuously in production for at least 10 years; i.e., classics."
Document 13: Panzer VII Löwe: The Panzerkampfwagen VII Löwe (Lion) was a design for a super-heavy tank created by Krupp for the German government during World War II. The project, initially code-named VK 70.01 (K), never left the drawing board, and was dropped in 5–6 March 1942, in favor of Porsche's heavier Panzer VIII Maus.
Document 14: Panther tank: The Panther was a German medium tank deployed during World War II on the Eastern and Western Fronts in Europe from mid-1943 to its end in 1945. It had the ordnance inventory designation of Sd.Kfz. 171. Until 27 February 1944, it was designated as the Panzerkampfwagen" V "Panther when Hitler ordered that the Roman numeral "V" be deleted. Contemporary English language reports sometimes refer to it as the "Mark V".
Document 15: Panzer IV: The "Panzerkampfwagen" IV (PzKpfw IV), commonly known as the Panzer IV, was a German medium tank developed in the late 1930s and used extensively during the Second World War. Its ordnance inventory designation was Sd.Kfz. 161.
ground_truth: World War II