The Communist Party of Yugoslavia was left to curse Radić for having made a "shameful capitulation." The Krestintern's "united front" strategy fell to failure. The Krestintern published an official organ called "The Peasant International" to propagate its political views. The magazine was launched in April 1924 and included articles by Japanese Communist Sen Katayama and Nguyễn Ái Quốc (Ho Chi Minh) of Vietnam, emphasizing the new International's goal of building the radical agrarian movement of Asia in addition to its plan to build bridges to Eastern European peasant parties. In 1926 the Krestintern attempted to help broker cooperative relations between the Communist Party of China (CCP) and the Kuomintang headed by Chiang Kai-shek. The presidium of the International Peasant Council, the top leadership of the Peasant International, issued an open letter to the Kuomintang and its peasant section at the end of April of that year, expressing supreme confidence in that organization as "the center which rallies, unites, and organizes all the revolutionary forces against the pressure of the reactionaries and imperialists." Chiang parlayed this relationship into Soviet aid and a list of Communist Party members — assets which were later used in a formidable and partially successful effort to annihilate the CCP in the Shanghai massacre of 1927. The Krestintern's activities in China once again proved ineffective for advancing Comintern policy interests. Also in 1926 the Krestintern established a research facility in Moscow for the study of agrarian problems and the publication of books on these topics, known as the International Agrarian Institute. This subdivision of the Peasant International actually continued to exist for several years past the demise of its parent organization, publishing books through 1942, when the German invasion in World War II forced its termination. The period of pro-peasant moderation exemplified by the New Economic Policy came to an abrupt end in 1928, marked by a return to forced requisitioning in an attempt to alleviate the Grain Crisis of 1928. Serious efforts to advance a united front with the peasantry through the Red Peasant International seem to have been abandoned at this time, although the organization remained nominally functional for nearly a decade further. In 1930 a new Communist-backed agrarian organization called the European Peasant Committee was unveiled in Berlin. As was the case with the Peasant International, this group proved a failure in its design to attract peasants and peasant organizations to the communist banner.