Apart from upsetting Sunni and Kurdish allies of the United States in Iraq, the Iranian ascendancy in Iraq will disturb some major American allies — particularly the Saudis, who fear Iranian power. The United States can’t afford a scenario under which Iranian power is projected into the Saudi oil fields. While that might be an unlikely scenario, it carries catastrophic consequences. The Jordanians and possibly the Turks, also American allies, will pressure Obama not simply to withdraw. And, of course, the Israelis will want the United States to remain in place to block Iranian expansion. Resisting a coalition of Saudis and Israelis will not be easy.

This will be the point where Obama’s pledge to talk to the Iranians will become crucial. If he simply withdraws from Iraq without a solid understanding with Iran, the entire American coalition in the region will come apart. Obama has pledged to build coalitions, something that will be difficult in the Middle East if he withdraws from Iraq without ironclad Iranian guarantees. He therefore will talk to the Iranians. But what can Obama offer the Iranians that would induce them to forego their primary national security interest? It is difficult to imagine a U.S.-Iranian deal that is both mutually beneficial and enforceable.

Obama will then be forced to make a decision. He can withdraw from Iraq and suffer the geopolitical consequences while coming under fire from the substantial political right in the United States that he needs at least in part to bring into his coalition. Or, he can retain some force in Iraq, thereby disappointing his supporters. If he is clumsy, he could wind up under attack from the right for negotiating with the Iranians and from his own supporters for not withdrawing all U.S. forces from Iraq. His skills in foreign policy and domestic politics will be tested on this core question, and he undoubtedly will disappoint many.

The Afghan Dilemma

Obama will need to address Afghanistan next. He has said that this is the real war, and that he will ask U.S. allies to join him in the effort. This means he will go to the Europeans and NATO, as he has said he will do. The Europeans are delighted with Obama’s victory because they feel Obama will consult them and stop making demands of them. But demands are precisely what he will bring the Europeans. In particular, he will want the Europeans to provide more forces for Afghanistan.

Many European countries will be inclined to provide some support, if for no other reason than to show that they are prepared to work with Obama. But European public opinion is not about to support a major deployment in Afghanistan, and the Europeans don’t have the force to deploy there anyway. In fact, as the global financial crisis begins to have a more dire impact in Europe than in the United States, many European countries are actively reducing their deployments in Afghanistan to save money. Expanding operations is the last thing on European minds.

Obama’s Afghan solution of building a coalition centered on the Europeans will thus meet a divided Europe with little inclination to send troops and with few troops to send in any event. That will force him into a confrontation with the Europeans in spring 2009, and then into a decision. The United States and its allies collectively lack the force to stabilize Afghanistan and defeat the Taliban. They certainly lack the force to make a significant move into Pakistan — something Obama has floated on several occasions that might be a good idea if force were in fact available.

He will have to make a hard decision on Afghanistan. Obama can continue the war as it is currently being fought, without hope of anything but a long holding action, but this risks defining his presidency around a hopeless war. He can choose to withdraw, in effect reinstating the Taliban, going back on his commitment and drawing heavy fire from the right. Or he can do what we have suggested is the inevitable outcome, namely, negotiate — and reach a political accord — with the Taliban. Unlike Bush, however, withdrawal or negotiation with the Taliban will increase the pressure on Obama from the right. And if this is coupled with a decision to delay withdrawal from Iraq, Obama’s own supporters will become restive. His 52 percent Election Day support could deteriorate with remarkable speed.

The Russian Question

At the same time, Obama will face the Russian question. The morning after Obama’s election, Russian President Dmitri Medvedev announced that Russia was deploying missiles in its European exclave of Kaliningrad in response to the U.S. deployment of ballistic missile defense systems in Poland. Obama opposed the Russians on their August intervention in Georgia, but he has never enunciated a clear Russia policy.