Explanation: The United States was allied with the Soviet Union primarily because the Soviet Union had been invaded by Germany. There was some distrust, though, as the Soviets had earlier signed a non-aggression pact with Germany. The Soviets also felt that the United States, by refusing to open an Eastern Front to take the pressure off Soviet troops, had been lukewarm in its support. That distrust meant that the two were not exactly comrades or friends (B). They also were not enemies, because the United States was looking for a solution that was acceptable to the Soviets (C). That the Soviets’ views were considered means that they were not strangers (D).