二战期间，美国和苏联是盟友。

During World War II, the United States and the Soviet Union were ___allies.

盟友协调了他们的军事战略以确保在冲突中获胜。

The ___allies coordinated their military strategies to ensure victory in the conflict.

在危机时期，一个可靠的盟友对于维持地缘政治稳定至关重要。

A reliable ___ally is essential for maintaining geopolitical stability in times of crisis.