According to Wikipedia, the total strength of the US armed forces is about 1.4 million.
Of this, 42,000 are coast guard, they're not going to Iraq.
336,000 are navy.
333,000 are air force.
522,000 are army.
186,000 are marines.
Factor out the coast guard, air force and navy, and this leaves the army and marines. A total of 608,000 available for deployment.
Now, take out 30,000 to 40,000 for a tripwire force in Korea. We're down to about 570,000.
Another 40,000 in Japan. We're down to 530,000.
10,000 in Italy. 520,000
10,000 in the United Kingdom. 510,000
75,000 in Germany. 435,000.
Let's assume 20,000 or less for the the rest of 820 military bases deployed in 39 countries. That takes us down to roughly 415,000.
We've got about 20,000 deployed in Afghanistan. Let's say 395,000.
Lets say another 10,000 in the theatre, Kuwait, Bahrain, etc. 385,000.
Which takes us to 170,000 currently stationned in Iraq as front line troops. Which leaves the army and marines with barely 215,000 left for back up and support functions.
Do you know what that means in Englishi, boys and girls? It means really really screwed.
Of course, there are the reserves, a total of 1.4 million right there, who are being called up and thrown into the meat grinder. But only a fraction of the reservists are available and eligible.
And then there's the National Guard. About 350,000 of them. National Guard deployments constitute 43% of front line forces in Iraq, and 53% of front line forces in Afghanistan.
The trouble with the reserves and National Guard is that they're not actually full time soldiers, didn't sign up to be full time soldiers, and have civilian lives on hold at home. So its not really kosher to backdoor draft them into full time service.