Nixon helped them Hugely during the Yom Kipper War, October 1973
Beat me to it. GMTA.
****ed right. Nickel Grass was decisive. "You will send everything that will fly." The success of the 12000 mile airlift vs the lower tonnage and overall failure of the Soviet airlift was a massive embarrassment to the USSR, and served as an unspoken part of the rationale for Sadat's booting of the Russians and embrace of the US.
Of course, the fact that the Arab armies in 1973 had every advantage and still lost is a tribute to both the valor and skill of the IDF and IAF as well as a grave indictment of the attackers.