Two days after the attack, in a memo to President Johnson, his Special Assistant Walt Rostow wrote "I'm not suggesting our usual admonition against retaliation. We'll maintain that posture ... but retaliation is not the point in this case. This 3,000-man raid with tanks and planes was out of all proportion to the provocation and was aimed at the wrong target. In hitting Jordan so hard, the Israelis have done a great deal of damage to our interests and to their own: They've wrecked a good system of tacit cooperation between Hussein and the Israelis. ... They've undercut Hussein. We've spent $500 million to shore him up as a stabilizing factor on Israel's longest border and vis-à-vis Syria and Iraq. Israel's attack increases the pressure on him to counterattack not only from the more radical Arab governments and from the Palestinians in Jordan but also from the Army, which is his main source of support and may now press for a chance to recoup its Sunday losses. ... They've set back progress toward a long term accommodation with the Arabs. ... They may have persuaded the Syrians that Israel didn't dare attack Soviet-protected Syria but could attack US-backed Jordan with impunity. It's important that we strengthen the hand of those within the Israeli Government who feel this is not the proper way to handle the problem. Even members of the Israeli military now doubt that retaliation will stop the cross-border raids, though they see no better solution."