In World War II, when Nazi Germany and Imperial Japan were our primary enemies in the world, the Soviet Union, which was also threatened, chose to be our ally.
But immediately when World War II ended — in fact even before it ended — the Soviet Union embarked upon aggressive schemes, choosing to be our enemy.
The Soviet Union seized much of Europe and Asia. It forced us into tremendous spending for armaments to defend against its many threats.
The Soviet Union’s military ambitions impoverished its own captive people.
In the early 1990s, fortunately, the Soviet regime collapsed, for a variety of reasons. While the Russians are still troublemakers in many ways and in some places, they are not the imminent military threat they used to be.