'Warfare' in the Bible

Warfare was severe against [the] Philistines all the days of Saul. Whenever Saul saw {anyone who was a mighty warrior} or {any brave man}, he {conscripted him into his service}.

How [the] mighty have fallen and the weapons of warfare perished."

"You knew David my father, that he was not able to build a house for the name of Yahweh his God, {in view of the warfare} which surrounded him, until Yahweh placed them under the soles of his feet.

All of them {wield swords}; [they are] {trained in warfare}, each with his sword at his thigh [to guard] {against terror} in the night.

This happened in the days of Ahaz, son of Jotham, son of Uzziah, king of Judah. Rezin, king of Aram, and Pekah, son of Remaliah, king of Israel, went up [to] Jerusalem for warfare against it, but he was not able to fight against it.