War is an organised conflict, usually consisting of intense violence carried out by one state or states against another state or states.
The Bible does not clearly answer questions about war and peace, but it gives Christians guidelines on how to work for peace and justice.
The causes of any war are complex. Wars are rarely about just one thing. They can be declared when a state or states act to:
War can also occur internally within a state between organised groups, this is known as civil war.