Answer: D.
Explanation: In this excerpt from President George W. Bush's speech to the troops on the USS Abraham Lincoln, the answer that is a complete and correct summary of this part of the speech is unlike other countries that stay, it is time for these people in service to return home from war. This speech was called "Mission Accomplished", not because of what the speaker said but because of a warship's banner. The best summary is other countries may choose to stay, but it is time for Americans to go back home.