After the June War of 1967 the issue at stake was the return of territories occupied by Israel. The purposely ambiguous UN Resolution 242 became a controversial issue as each party stressed another part of the resolution. As the Israelis refused the equation “land for peace” and the withdrawal from all territories, the Arab states at Khartoum decided to adopt a unified position. The Arab states agreed to unify efforts to “eliminate the effects of aggression” – not eliminate Israel. Although they pledged not to negotiate with Israel, they looked to the superpowers – the USA and USSR – to resolve the dispute. The USA was all too willing to sit back and wait for the Arab states to come around. After all, the Arab States wanted their land back and all they had to do to get it back was to sign peace treaties with Israel. To re-engage the Americans, Egypt engaged Israel in the so-called War of Attrition artillery duels and aerial dogfights across the Suez Canal (solely within its own occupied territory). The US Department of State made an attempt to break the impasse announcing the Rogers Plan in December 1969. Both sides at first turned down the plan, but the escalation of war during the first half of 1970 and the threat of superpower involvement may have changed the situation. In July 1970 Egypt and Israel accepted the Rogers Plan.