"in a great number of countries, far from the russian frontiers and throughout the world, communist fifth columns are established and work in complete unity and absolute obedience to the directions they receive from the communist center. i do not believe that soviet russia desires war. what they desire is the fruits of war and the indefinite expansion of their power and doctrines. . our difficulties and dangers will not be removed by . . mere waiting to see what happens; nor will they be relieved by a policy of appeasement. . i am convinced that there is nothing [the russians] admire so much as strength, and there is nothing for which they have less respect than for military weakness." according to winston churchill in his "iron curtain" speech, what was the soviet union's true desire in 1946?