'''Opening fire''' refers to the first shots fired in an engagement between armed parties. It can be small arms fire or artillery. The question ''Who fired the first shot?'' has legal and ethical implications.
+
'''Opening fire''' refers to the first shots fired in an engagement. It can be small arms fire or artillery. The question ''Who fired the first shot?'' has legal and ethical implications.
'''Returning fire''' refers to a response to opening fire.
'''Returning fire''' refers to a response to opening fire.