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During their journeys across the wilderness, the twelve tribes formed encampments at the different places where they halted (Exodus 16:13; Numbers 2:3).
The area of the camp would be in all about 3 square miles. Each tribe of Israel camped in a specific position during the wanderings of the exodus (Num. 1:53; 2:2-31; 3:29, 35, 38; 10:13-28).
After the Hebrews entered Canaan, the camps then spoken of were exclusively warlike (Joshua 11:5, 7; Judges 5:19, 21; 7:1; 1 Samuel 29:1; 30:9, etc.).