From the Horse's Mouth

Not sure how I missed this from the BBC:

Al-Qaeda broadcasts new message

The deputy leader of al-Qaeda, Ayman al-Zawahiri, has appeared in a new videotape shown by Arabic satellite television station al-Jazeera.

In the tape, he claims that US hints of a future reduction of troops in Iraq are "a victory for Islam".

(emphasis added)

Also at JihadWatch.

Update:

In a statement released in the name of the al-Qaeda in Iraq terrorist group on Monday, leader Abu Musab al-Zarqawi says the same thing:

Al-Zarqawi also echoed last week's purported statement by al-Qaida No. 2 Ayman al-Zawahri by saying the recent U.S. announcement that it will withdraw some troops from Iraq this year was a victory for Islamic forces.

Al-Zawahri made the same claim in a videotape broadcast Friday on pan-Arab television.

"America today is breathing its last breaths and shaking under the blows of the holy warriors," al-Zarqawi said in Monday's tape.

He said he was praying to God to destroy Americans.

(emphasis added)