President Obama will not declare “mission accomplished” in his prime-time speech on Iraq tonight, nor should he. He should not claim that a flowering democracy has been created in Iraq. He should not make unrealistic predictions about the long-term prospects for that shattered country.

The war isn’t over for the 50,000 U.S. troops left behind in Iraq. The president should recognize the sacrifice of all our troops, who have performed admirably. The war won’t be over for Americans back home until every last man and woman in uniform returns home safely from a conflict that has claimed so many lives and consumed so much treasure.

The president should reaffirm the strategic rationale for the drawdown set in motion by the Bush administration in consultation with the Iraqi government. Leaving U.S. troops in Iraq for another seven years will not make Americans safer. U.S. troops should not try to fashion a functioning state in Iraq. That task is the responsibility of the Iraqi government and the Iraqi people. Likewise, our troops should not serve as Iraq’s police force.

As our troops work hard to execute their mission, however, a rising chorus of voices is working diligently against the ultimate goal of U.S. withdrawal and Iraqi self-sufficiency. Some people are advising the president to leave a permanent U.S. military presence in Iraq, essentially arguing that the United States is the rightful guarantor of Iraqi sovereignty, and that the Iraqis simply can’t be trusted with security matters. The president has wisely turned aside such recommendations in the past, and should do so again.