the paratroopers destroyed a number of tank transports and killed several Syrian soldiers. There were no Israeli casualties. Arab military intervention As the Syrian position deteriorated, Jordan sent an expeditionary force into Syria. King Hussein, who had come under intense pressure to enter the war, told Israel of his intentions through U.S. intermediaries, in the hope that Israel would accept that this was not a casus belli justifying an attack on Jordan. Israeli Defense Minister Moshe Dayan declined to offer any such assurance, but said that Israel had no intention of opening another front. Iraq also sent an expeditionary force to Syria, consisting of the 3rd and 6th Armoured Divisions, some 30,000 men, 250–500 tanks, and 700 APCs. Israeli jets attacked Iraqi forces as they arrived in Syria. The Iraqi divisions were a strategic surprise for the IDF, which had expected 24-hour-plus advance intelligence of such moves. This turned into an operational surprise, as the Iraqis attacked the exposed southern flank of the advancing Israeli armor, forcing its advance units to retreat a few kilometres in order to prevent encirclement. Combined Syrian, Iraqi and Jordanian counterattacks prevented any further Israeli gains. However, they were unable to push the Israelis back from the Bashan salient, and suffered heavy losses in their engagements with the Israelis. The most effective attack took place on October 20, though Arab forces lost 120 tanks in that engagement. The Syrian Air Force attacked Israeli columns, but its operations were highly limited because of Israeli air superiority, and it suffered heavy losses in dogfights with Israeli jets. On October 23, a large air battle took place near Damascus during which the Israelis shot down 10 Syrian aircraft. The Syrians claimed a similar toll against Israel. The IDF also destroyed the Syrian missile defense system. The Israeli Air Force utilized its air superiority to attack strategic targets throughout Syria, including important power plants, petrol supplies, bridges and main roads. The strikes weakened the Syrian war effort, disrupted Soviet efforts to airlift military equipment into Syria, and disrupted normal life inside the country. On October 22, the Golani Brigade and Sayeret Matkal commandos recaptured the outpost on Mount Hermon, after a hard-fought battle that involved hand-to-hand combat and Syrian sniper attacks. An unsuccessful attack two weeks prior had cost the Israelis 23 dead and 55 wounded and the Syrians 29 dead and 11 wounded, while this second attack cost