“L’audace, l’audace, toujours l’audace!”  To Napoleon and other great generals the willingness to be bold and audacious was the key to victory. Barack Obama is no Napoleon. He seems to believe that timidity is the key to success–that flip-flopping and triangulating can somehow convince our enemies to make nice. He is sorely mistaken, and it is our troops in Afghanistan and their allies who will pay the price for his unwillingness to back them all the way to victory.

Having ordered a surge of 30,000 troops back in 2009, Obama is now pulling the plug on the effort just when it was showing success.

During the past half year our troops had taken back large portions of Helmand and Kandahar provinces from the Taliban. They are now holding that ground against determined Taliban counterattacks. But this is only stage one of a well-thought-out campaign plan designed by Gen. David Petraeus. Stage two calls for extending the security bubble to Regional Command-East–to the treacherous, mountainous terrain where the Haqqani Network, the Taliban, and the Hezb-e-Islami Gulbuddin have their strongholds. By electing to pull out 10,000 surge troops this year and 20,000 more by next summer, Obama is making it virtually impossible to implement this campaign plan. He is even throwing into doubt our ability to consolidate gains in the south.

But nor is he simply opting for a counter-terrorism strategy of air strikes and commando raids as advocated by Vice President Biden. We will still have 70,000 troops in Afghanistan by the fall of 2012: too many for a purely counter-terrorist approach but too few to successfully implement a counterinsurgency strategy.

Obama is making life much more difficult for the troops that remain. He is ham-stringing them, forcing them to assume high levels of risk, and throwing into doubt their ability to accomplish the job they were sent to do–namely to create an Afghanistan strong enough to resist terrorists and insurgents. It is not just that we will now lack the troop numbers needed to secure such a vast and spread out country. We will also lose the all important element of momentum which we had gained with the surge and the ensuing counterinsurgency campaign.

When, last fall, Obama agreed at the NATO summit in Lisbon that our forces would not transition security to Afghan control until 2014, he signaled a long-term commitment. That made ordinary Afghans more willing to trust us and turn against the Taliban. With his speech on Wednesday he signaled hesitation, doubt, and irresolution. Why should anyone in Afghanistan, or for that matter Pakistan, trust us now? They will assume we are on the way out and therefore not worth risking their necks to help.

As usual Obama said nothing about seeking victory in Afghanistan over the Haqqanis, the Taliban, or other extremist groups closely allied with Al Qaeda. Instead he spoke above all of his desire to get out of Afghanistan. “This is the beginning — but not the end –- of our effort to wind down this war,” he said.

That is all our enemies need to hear. They will now be convinced that we do not have the will to see the war through and will act accordingly.

Clearly Obama’s motivation is political–he wants the surge troops out before he must face the voters in November 2012. Certainly there is no operational reason to pull so many troops out so quickly–a step he is taking in the face of unanimous military advice to the contrary. As a short-term political ploy this may be successful. But history will not be deceived. Obama will be judged not on how quickly he pulled troops out but on what kind of country they leave behind. With his feckless announcement on Wednesday, he has greatly increased the possibility of a historic defeat for American forces in Afghanistan. If that were to happen, posterity will not judge him kindly.

Obama had actually shown audacity when it came to Afghanistan in 2009–the year he ordered the surge. But he left himself an escape hatch in the form of a deadline to begin withdrawing this summer. Now he has ordered a withdrawal far beyond the expectations or desires of those he sent to implement his strategy. Plainly he has lost his nerve, thereby sacrificing the one quality that any commander-in-chief must have above all others.