The European theater of WW2 was a war between nazism and communism, with free countries on both sides, depending on where they happened to be located. East of a

The European theater of WW2 was a war between nazism and communism, with free countries on both sides, depending on where they happened to be located. East of a certain line, the initial aggressor was the USSR, not Germany. It was a confusing war, with some countries switching sides more than once and some countries being at war with some but not all major powers on the other side. Things looked clearer on the Western Front, because it was a peripheral front outside the main conflict.