This new policy would echo, though in far more benign form, America's Cold War deterrence policy of ``massive retaliation." That was all somewhat theoretical, but the Soviets apparently thought otherwise when they backed down during the Cuban missile crisis. In Gaza, the issue is not theoretical. Once Israel leaves, there is no way to dismantle the rockets. Deterrence is all there is. After but a few Israeli demonstrations of ``non-massive retaliation,'' the Palestinians themselves will shut down their terrorist rocketeers.

     The second problem is world reaction to the Gaza withdrawal. Far from Israel getting any credit for this deeply wrenching action, the demand now is for yet more concessions -- from Israel. The New York Times called the Gaza withdrawal ``only the beginning'' and declared sonorously that Ariel Sharon ``must also be forewarned'' that giving up the West Bank must be next.

     This is a counsel of folly. The idea that if only Israel made more concessions and more withdrawals, the Palestinians will be enticed into making peace is flatly contradicted by history.

     We are not talking ancient history here; we are talking the last 12 years. Under Oslo, Israel made massive, near-suicidal concessions: bringing the PLO back to life, installing Yasser Arafat in power in the West Bank and Gaza, permitting him to arm militia after militia, and ultimately offering him (at Camp David 2000) the first Palestinian state in history, with a shared Jerusalem and total Israeli withdrawal from 95 percent of the formerly occupied territories (with Israel giving up some of its own territory to make the Palestinians whole).

     How were these concessions met? With a savage terror war that killed 1,000 Israelis and maimed thousands more.

     The Gaza withdrawal is not the beginning but the end. Apart from perhaps some evacuations of outlying settlements on the West Bank, it is the end of the concession road for Israel. And it is the beginning of the new era of self-sufficiency and separation in which Israel ensures its security not by concessions, but by fortification, barrier creation, realism and patient waiting.

     Waiting for the first-ever genuine Palestinian concessions. Waiting for the Palestinians to honor the promises -- to recognize Israel and renounce terrorism -- they solemnly made at Oslo and brazenly betrayed. That's the next step. Without it, nothing happens.