"47:4. So, when you meet those who disbelieve, smite at their necks till when you have k**led and wounded many of them, then bind a bond firmly. Thereafter (is the time) either for generosity or ransom, until the war lays down its burden. If it had been Allah's Will, He Himself could certainly have punished them (without you). But (He lets you fight), in order to test you, some with others. But those who are k**led in the Way of Allah, He will never let their deeds be lost, "

A reference to war...
Also... In many t***slations they will make tge notation that the verb used for 'meet' is a verb that refers to meeting in battle...