In the 1967 war, Israel claimed that it's attack was preemptive, but it actually seems most likely that Egypt was not going to attack Israel. The Israelis had

In the 1967 war, Israel claimed that it's attack was preemptive, but it actually seems most likely that Egypt was not going to attack Israel. The Israelis had massive military superiority over the Arab armies in 1967, and they knew it (at least, the Israeli leadership knew it). They expected the war to be a fast, lopsided victory, which is what it turned out to be.