Never.
5/28/1935
1944
They invaded Hungray
yes
September 6, 1998
he really invaded Poland Hungary and other neighboring places but he did not invade the USA
June 6 1944
Russia tried to invade Hungary, this was the start
What year and day did Germany invade France?
The United States didn't exist until many centuries after the year 911.
Hungary and Czechoslovakia
they promised to support Austria-Hungary after it threatened to invade Serbia