Tents were Used by The People of Israel in all Their Wars

When the troops returned to the camp, the elders of Israel asked, “Why has the LORD brought defeat on us before the Philistines today? Let us bring the ark of the covenant of the LORD from Shiloh, so that it may go with us to save us from the hand of our enemies.”

So the Philistines fought, and Israel was defeated, and each man fled to his tent. The slaughter was very great—thirty thousand foot soldiers of Israel fell.

Now the Philistines brought all their forces together at Aphek, while Israel camped by the spring in Jezreel.

…and the people in the camp heard that Zimri had conspired against the king and struck him down. So there in the camp that very day, all Israel proclaimed Omri, the commander of the army, king over Israel.