It means - a forcible overthrow of a government or social order, in favor of a new system.
Because it was To get more land to get more ressources that's why countries get involved in wars
Why would I tell my life to someone
The major cause is the Germany was using submarines to sink down the American ships and killed all of the American soldiers, and that is why the U.S join the war and pay back... mark me brainlist please...
