What countries were under fascism?

Officially, only Italy. Benito Mussolini's political party were the Fascists. Generally, the term has been applied to Spain under Franco, Germany under Hitler & the Nazis, and Japan under Tojo.

However, the Japanese government was the least "fascist" of the World War II Axis powers. The term was applied to the Japanese government more out of Propaganda than any particular government structure or policy.

Now, the term fascist can refer to any perceived totalitarian government or oppressive regime. The term is usually applied by the oppressed, rather than the government itself. The term has been applied to many levels of government, including local school boards, state governments, and private organizations. None of those uses have been official.

chickensssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss