These were vanquished by Moshe, the servant of Hashem, and the Israelites; and Moshe, the servant of Hashem, assigned that territory as a possession to the Reubenites, the Gadites, and the half-tribe of Menashe.
Joshua 12:6 (The Israel Bible™)

מֹשֶׁה עֶבֶד־יְהֹוָה וּבְנֵי יִשְׂרָאֵל הִכּוּם וַיִּתְּנָהּ מֹשֶׁה עֶבֶד־יְהֹוָה יְרֻשָּׁה לָרֻאוּבֵנִי וְלַגָּדִי וְלַחֲצִי שֵׁבֶט הַמְנַשֶּׁה
Hear the verse in Hebrew

mo-SHEH e-ved a-do-NAI uv-NAY yis-ra-AYL hi-KUM va-yi-t’-NAH mo-SHEH e-ved
a-do-NAI y’-ru-SHAH la-ru-vay-NEE v’-la-ga-DEE v’-la-kha-TZEE SHAY-vet ham-na-SHEH

Moshe, the Servant of Hashem, Assigned that Territory as a Possession

In this chapter, which summarizes the wars fought by the Children of Israel to take possession of the Promised Land, we are also reminded of the wars Moshe fought. Mosheled the people against Sihon and Og, and captured the Gilead and the Bashan. This area became the inheritance of the tribes of Gad, Reuven and half of Menashe (see Numbers 32:33). The Bashan is now known as the Golan Heights, which Israel conquered in the Six Day War from Syria. Towering over the north of the country, the Golan Heights provides an essential strategic perch that is vital for Israel’s security. Coupled with its biblical significance, the Golan Heights remain an important part of the State of Israel. In his final interview before suffering a massive stroke in 2006, Prime Minister Ariel Sharon told Japanese reporters, “I am a Jew, and that is the most important thing for me. Therefore when it comes to the security of Israel I will not make any compromises…I don’t see any situation where Israel will not be sitting on the Golan Heights.