Uruguay was always on the periphery of the foreign policy of the USSR. At the same time, political, economic, party and cultural ties between Moscow and Montevideo since the 1920s was developing, which became a factor in intern policy in Uruguay. Before the Second World War, relations between the two countries were formed in the context of the influence of the Comintern, and during the era of the Cold War — in the context of organizational and ideological ties between the communist parties. The purpose of this article is to show the features of the evolution of relations between the USSR and Uruguay in the 1920—1980s. Based on party documents, documents of the Comintern, documents of Soviet foreign policy, the article examines the stages of the formation of bilateral relations, identifies their main features, draws conclusions about the influence of the left movement on relations between Uruguay and Moscow. Particular attention is paid to the influence of the USSR on the ideology of the Uruguayan communist movement, as well as on the ratio of state and public relations of the two countries.

Parameters (thickness, electron density) of the laser target in the form of ultrathin foil are determined that provide maximum (~ 10%) conversion ratio of short relativistically intense laser pulses into a train of several coherent attopulses. Attopulse amplitude, duration are determined, conversion ratio of laser energy into the energy of attopulses is determined and the possibility of its increase using several successively located targets is shown. Keywords: ultraintense laser pulse, attopulse, laser plasma, laser target.

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