How many fighting men did Joshua have to enter Canaan?

Joshua had approximately 40,000 fighting men when he entered Canaan, according to the biblical account in the book of Joshua 4:13. This number included the men from the tribes of Reuben, Gad, and the half-tribe of Manasseh, who had prepared for battle while the rest of the Israelites crossed the Jordan River. This force was part of a larger population of Israelites that had exited Egypt but was specifically noted for the conquest of Canaan.