In October 1956, Poland's communist leaders refused to succumb to Soviet military threats to intervene in domestic political affairs and install a more obedient politburo. A few weeks later, the Communist Party in Hungary virtually disintegrated during a popular revolution. Poland's defiance and Hungary's popular uprising inspired Romanian students to organize meetings in București, Cluj and Timișoara calling for liberty, better living conditions, and an end to Soviet domination. Under the pretext that the Hungarian uprising might incite his nation's own revolt, Gheorghiu-Dej took radical measures which meant persecutions and jailing of various "suspects", especially people of Hungarian origin. He also advocated swift Soviet intervention, and the Soviet Union reinforced its military presence in Romania, particularly along the Hungarian border. Although Romania's unrest proved fragmentary and controllable, Hungary's was not, so in November Moscow mounted a bloody invasion of Hungary.