in 1916.
The Mexican American War.
it was a treaty signed between Germany and Mexico, saying that if Germany won the war they would help Mexico invade the US
He didn't. He was the president of Mexico.
1519
Mexico
They could, but the invasion would not last long, because the US military is far superior to the Mexican military. Besides, this is very unlikely, since the US and Mexico are such close allies and trading partners.
r wtsi
a chicken
Maximilian of Habsburg
16th century (1521).
1. Germans sank many of their merchant ships before the US entered the war with the their u-boats2. Germans sent a coded message to Mexico that urged Mexico to invade US that British code breakers cracked and sent to the US.
Yes. It is the only country in the world that has ever invaded the United States and killed American nationals within US soil (Pancho Villa, 1916).