Kahalani was conscripted into the
Israel Defense Forces (IDF) in 1962, and joined the
7th Brigade of the
IDF Armored Corps. He started as a regular soldier, but later completed a tank commander's course with honors. He then completed an officer's course with honors at
Bahad 1, and became a career officer in the IDF. In 1964, he was part of an IDF delegation to
West Germany to receive the IDF's first
M48 Patton tanks. During the
Six-Day War, Kahalani commanded a company of Patton tanks from the 79th Battalion. He was awarded the
Medal of Distinguished Service for his service during the war, where he was badly wounded when his M-48 Patton caught fire. When the
Yom Kippur War broke out in 1973, Kahalani was a 29-year-old
lieutenant colonel and battalion commander. He served as commander of the
Centurion-equipped 77th Armored Battalion of the 7th Brigade on the
Golan Heights. Kahalani's battalion – along with other elements of the 7th Armored Brigade – engaged in fierce defensive fighting against a vastly superior
Syrian mechanized force of more than 50,000 men and 1,200
tanks. The battle proved to be one of the turning points of the war. After the war, the valley where it took place was littered with hundreds of destroyed and abandoned Syrian tanks and was renamed "Emek Ha-Bacha" ("
Valley of Tears"). For his actions, Kahalani was awarded the highest Israeli military decoration, the
Medal of Valor. ==Political career==