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Yuktobania retaliated against alleged Osean war crimes with several terrorist attacks on civilians in early November and an unsuccessful decapitation strike against the Vice President on November 29th.
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The invasion progressed smoothly for Osea, and Cinigrad was besieged in early December. The Vice President authorized an expeditionary invasion of Yuktobania beginning on October 30th. The war deescalated for the next several weeks due to the strategic balance brought by the Arkbird, until Osea's President was secretly imprisoned by the Belkan conspirators and the Arkbird was sabotaged. Yuktobania maintained its offensive inertia until an amphibious assault on Sand Island was warded off by the Arkbird on October 4th, also resulting in the loss of a Scinfaxi class submarine. The declaration of war was immediately accompanied by a surprise attack on Osean naval base at Saint Hewlett, followed up by air raids culminating in the ambush of Osean aircraft carriers in the Eaglin Straits, sinking two of the carriers assigned to the Third Fleet. Throughout September they probed Osean defenses with border incursions before officially declaring war on September 27th. Nikanor, a proponent of closer ties with Osea, was detested by regime hardliners, leading to a 2010 palace coup aided by the covert support of Belkan operatives, which placed de facto control of the nation in the hands of the military. The administration of Prime Minister Seryozha V.
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Despite the official warming of relations, Yuktobania continued development of strategic weapon systems, such as the Scinfaxi class submarine, which was incomplete at the end of the Belkan War. Their allies continued to fight proxy wars, and Yuktobania even provided aid to extremist factions in Erusea following the regime's defeat in 2005. However, ideological and geostrategic tensions persisted. Both nations continued to pursue detente after the war, with Osea and Yuktobania pledging to work together on arms control measures, space exploration, and other transnational political agreements. Belka's aggression against its former territories in 1995 prompted collaboration between the superpowers, with Yuktobania supplying intelligence assets and airpower to the Allied Forces. Though this conflict never came to blows, both nations regarded each other as "potential enemies," and their allies often fought with one another in proxy wars. Yuktobania was the Osean Federation's primary geopolitical rival throughout the 20th Century's Cold War.
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