How about the Circle Trigonists? They did invade the USA...Rules: 1) POD has to be post 1945.
2) Nope, neither Franco's Spain nor Salazar's Portugal counts as one... unless there is a revolution/election/a mix of both and new fascist government succeed the former.
3) The government has to last at least one (1) full term
Bonus if the government is economically successful for greater part of their rule. (they don't have to be the CAUSE of success, they could just capitalise on existing prosperity)