The unmistakable inference is that Obama did not carefully think through his March Afghan policy, or did not have full confidence then or now in Army Gen. Stanley A. McChrystal or Ambassador Richard C. Holbrooke, or that it is now politically inconvenient among increasingly antiwar Democrats to follow through on that policy.

None of these explanations reflect credit on the president. He is dithering. Whatever decision Obama reaches on Afghanistan, his credibility and leadership have been badly wounded by his continuing public display of indecisiveness.

Our international adversaries undoubtedly welcome all of these “resets” in U.S. foreign policy, but Americans should be appalled at how much of our posture in the world has already been given away. If Obama’s first nine months indicate the direction of the next 39, we still have a long way to fall.