An Act of war or casus belli is an action by one country against another with an intention to provoke a war or an action that occurs during a declared war or armed conflict between military forces of any origin.
Act of war may also refer to:
An Act of war or casus belli is an action by one country against another with an intention to provoke a war or an action that occurs during a declared war or armed conflict between military forces of any origin.
Act of war may also refer to: