Numbers 32:17
but we will keep ourselves armed and stay ready to go with the Israelis until we've brought them to their own places. Our families intend to live in fortified cities in the presence of the inhabitants of the land,
Joshua 4:12-13
Just as Moses had directed, the descendants of Reuben, the descendants of Gad, and the half-tribe of Manasseh crossed over, dressed in battle regalia, in full view of the other Israelis.
Numbers 32:29-32
telling them, "If the descendants of Gad and descendants of Reuben cross over the Jordan River with you, that is, all of their soldiers who've been equipped for battle in the LORD's presence, so that the land is subjugated right before your eyes, then you are to give them the land of Gilead as their possession.
Deuteronomy 3:18-20
"Then I commanded you at that time, "The Lord your God gave you this land as a possession. Those equipped for battle every man a warrior will cross before your fellow Israelis.