Soviets. On October 24, Sadat publicly appealed for American and Soviet contingents to oversee the ceasefire; it was quickly rejected in a White House statement. Kissinger also met with Soviet Ambassador Dobrynin to discuss convening a peace conference with Geneva as the venue. Later in the evening (9:35 pm) of October 24–25, Brezhnev sent Nixon a "very urgent" letter. In that letter, Brezhnev began by noting that Israel was continuing to violate the ceasefire and it posed a challenge to both the U.S. and USSR. He stressed the need to "implement" the ceasefire resolution and "invited" the U.S. to join the Soviets "to compel observance of the cease-fire without delay". He then threatened "I will say it straight that if you find it impossible to act jointly with us in this matter, we should be faced with the necessity urgently to consider taking appropriate steps unilaterally. We cannot allow arbitrariness on the part of Israel." The Soviets were threatening to militarily intervene in the war on Egypt's side if they could not work together to enforce the ceasefire. Kissinger immediately passed the message to White House Chief of Staff Alexander Haig, who met with Nixon for 20 minutes around 10:30 pm, and reportedly empowered Kissinger to take any necessary action. Kissinger immediately called a meeting of senior officials, including Haig, Defense Secretary James Schlesinger and CIA Director William Colby. The Watergate scandal had reached its apex, and Nixon was so agitated and discomposed that they decided to handle the matter without him: When Kissinger asked Haig whether [Nixon] should be wakened, the White House chief of staff replied firmly 'No.' Haig clearly shared Kissinger's feelings that Nixon was in no shape to make weighty decisions. The meeting produced a conciliatory response, which was sent (in Nixon's name) to Brezhnev. At the same time, it was decided to increase the DEFCON from four to three. Lastly, they approved a message to Sadat (again, in Nixon's name) asking him to drop his request for Soviet assistance, and threatening that if the Soviets were to intervene, so would the United States. The Soviets placed seven airborne divisions on alert and airlift was marshaled to transport them to the Middle East. An airborne command post was set up in the southern Soviet Union, and several air force units were also alerted. "Reports also indicated that at least one of the divisions and a squadron