The tribes of Reuben, Gad, and East Manasseh had 44,760 soldiers trained to fight in battle with shields, swords, bows, and arrows.
When Saul was king, the Reuben tribe attacked and defeated the Hagrites, then took over their land east of Gilead.
(SEE 1:2)
So Moses gave the tribes of Gad, Reuben, and half of Manasseh the territory and towns that King Sihon the Amorite had ruled, as well as the territory and towns that King Og of Bashan had ruled.
Joshua told the men of the tribes of Reuben, Gad, and East Manasseh: