Question: Who was the spouse of the president of the russian republic at the time of the disintegration of the political entity that denied having anything more than an advisory role in the Korean War?

<P0-S0> The Chinese intervention in late October 1950 bolstered the Korean People's Air Force (KPAF) of North Korea with the MiG-15, one of the world's most advanced jet fighters. <P0-S1> The fast, heavily armed MiG outflew first-generation UN jets such as the F-80 (United States Air Force) and Gloster Meteors (Royal Australian Air Force), posing a real threat to B-29 Superfortress bombers even under fighter escort. <P0-S2> Fearful of confronting the United States directly, the Soviet Union denied involvement of their personnel in anything other than an advisory role, but air combat quickly resulted in Soviet pilots dropping their code signals and speaking over the wireless in Russian. <P0-S3> This known direct Soviet participation was a casus belli that the UN Command deliberately overlooked, lest the war for the Korean peninsula expand to include the Soviet Union, and potentially escalate into atomic warfare. <SEP> <P1-S0> on january 25, 1918 the third meeting of the all-russian congress of soviets renamed the unrecognized state the soviet russian republic. <P1-S1> the treaty of brest-litovsk was signed on march 3, 1918, giving away much of the land of the former russian empire to germany in exchange for peace during the rest of world war i. on july 10, 1918, the russian constitution of 1918 renamed the country the russian socialist federative soviet republic. <P1-S2> by 1918, during the russian civil war, several states within the former russian empire seceded, reducing the size of the country even more. <SEP> <P2-S0> hanahoe ("group of one") was an unofficial private group of military officers in south korea headed by chun doo-hwan, who later became the south korean president. <P2-S1> the members were mostly graduates of the eleventh class of the korean military academy in 1955. hanahoe formed the core of the group that eventually took control of the presidency and government from choe gyuha, ending the fourth republic. <SEP> <P3-S0> The dissolution of the Soviet Union occurred on December 26, 1991, officially granting self - governing independence to the Republics of the Soviet Union. <P3-S1> It was a result of the declaration number 142 - Н of the Supreme Soviet of the Soviet Union. <P3-S2> The declaration acknowledged the independence of the former Soviet republics and created the Commonwealth of Independent States (CIS), although five of the signatories ratified it much later or did not do so at all. <P3-S3> On the previous day, 25 December 1991, Soviet President Mikhail Gorbachev, the eighth and final leader of the Soviet Union, resigned, declared his office extinct, and handed over its powers -- including control of the Soviet nuclear missile launching codes -- to Russian President Boris Yeltsin. <P3-S4> That evening at 7: 32 p.m., the Soviet flag was lowered from the Kremlin for the last time and replaced with the pre-revolutionary Russian flag. <SEP> <P4-S0> Raisa Maximovna Gorbacheva ( "Raisa Maksimovna Gorbachyova", , Титаренко; 5 January 1932 – 20 September 1999) was a Russian activist who was the wife of Soviet leader Mikhail Gorbachev. <P4-S1> She raised funds for the preservation of Russian cultural heritage, fostering of new talent, and treatment programs for children's blood cancer.