<blockquote>[...] trade embargos by capitalist countries may be involved in the ideological warfare.</blockquote>Wasn't "Communism" supposed to be a <b>superior</b> economic system? Then why did they need trade with the west? The “<i>embargos</i>” certainly didn't hurt the "inferior" capitalist countries.
The Soviet Union <a href="http://en.wikipedia.org/wiki/Eastern_Bloc#East_Germany" rel="nofollow">confiscated many factories</a> from Eastern Germany:<blockquote>Factories, equipment, technicians, managers and skilled personnel were forcibly transferred to the Soviet Union.[59]</blockquote>They <a href="http://en.wikipedia.org/wiki/Eastern_Bloc#Marshall_Plan_rejection" rel="nofollow">also rejected the Marshall Plan</a><blockquote>In June 1947, after the Soviets had refused to negotiate a potential lightening of restrictions on German development, the United States announced the Marshall Plan, a comprehensive program of American assistance to all European countries wanting to participate, including the Soviet Union and those of Eastern Europe.[137] The Soviets rejected the Plan and took a hard line position against the United States and non-communist European nations.[138] However, of great concern to the Soviets was Czechoslovakia's eagerness to accept the aid and indications of a similar Polish attitude.[115]</blockquote><blockquote>In one of the clearest signs of Soviet control over the region up to that point, the Czechoslovakian foreign minister, Jan Masaryk, was summoned to Moscow and berated by Stalin for considering joining the Marshall Plan. Polish Prime minister Józef Cyrankiewicz was rewarded for the Polish rejection of the Plan with a huge 5 year trade agreement, including $450 million in credit, 200,000 tons of grain, <b>heavy machinery and factories.</b>[139]</blockquote>All this makes it clear that, from the end of WWII, the Soviet Union considered itself prepared for a full economic competition with the West, not requiring the trade that was “<i>embargoed</i>” They wanted to compete on "equal" terms, and they lost.
As is always the case when socialist systems compete with (even semi-)free market capitalist systems. That's why they're so hot for world government: only by infiltrating and subverting an overarching world government can they "compete", by using their control to put regulatory and other bureaucratic roadblocks in the way of free enterprise.