Israel Warns of Terrorist Training Bases in Lebanon:

"Israeli Defense Minister Shaul Mofaz said Thursday terrorist bases in Lebanon are training some of the foreign fighters who are moving into Iraq to kill American troops. Mofaz said his intelligence shows that some foreign fighters who are organizing suicide attacks in Iraq are trained by Hizballah, a Shi'ite terror militia funded by Iran and supported by Assad of Syria. "We do have information that Hizballah members, al-Qaeda members, and other terrorist groups from Syria are crossing into Iraq, and they are part of the resistance against the U.S. forces," the defense minister said.
Lt. Gen. Ricardo Sanchez said this week he thinks about 200 foreign fighters are now in Iraq in an alliance with Saddam Hussein loyalists attacking American soldiers. Another 200 foreign insurgents are in custody and scores have been killed."
source: (Washington Times)

Only 5,000 Guerrilla fighters in Iraq:

"The senior American commander in the Middle East said Thursday that the Unites States-led occupation in Iraq faces no more than 5,000 guerrilla fighters, but that they are increasingly well organized and well financed, and are gradually expanding their attacks to the previously calm north and south. Gen. John Abizaid said loyalists to Saddam Hussein - not foreign terrorists - pose the greatest danger to American troops and to stability in Iraq. He said these militants hired unemployed "angry young men" to do much of their "dirty work."
source: (New York Times)