[1] In 1936, Yoffe had joined the Special Night Squads, a joint British-Jewish counter-insurgency unit established by Orde Charles Wingate.

According to Michael Oren: "Though fifty-three years old and paunchy, the director of Israel's Nature Protection Society, Avraham Yoffe, was a seasoned fighter in Sinai.

Later, as head of the Southern Command, he developed contingency plans for moving tanks over desert wastes that were widely believed insurmountable.

Summoned a few weeks before the war by Gen. Gavish, Yoffe had arrived at camp in civilian clothes, thinking he was making a courtesy call.

His assignment was to penetrate Sinai south of Tal's forces and north of Sharon's, dividing the two fronts and preventing enemy reinforcements from reaching either.

"[2] He thus commanded a troop division in Egypt during the attack on the Sinai Peninsula through Wadi Haroudin, an area impassable to the Israeli tanks.

The basis of the plan was for Yoffe to attack the Egyptians from the flank and drive them to retreat into the Mitla Pass, where Sharon and Tal would wipe them out.

[3] In 1963, while on military duty, Avraham Yoffe was permitted to serve as a chairman of the newly created Nature Reserves Authority Council.

In November 1964, he retired from the military, and in May 1965, he was appointed director of the Nature Reserves Authority, where he served for 14 years, replaced by Adir Shapira in 1978.