Who supplies weapon to Al Qaida?

What excuse the Neocon uses to have US troops staying in Iraq? Insurgence and riot. Although some people said Iraq war is like Vietnam war, it is not. There were two big countries: Soviet Union and China behind the Vietnam. It was their support of weapons and economic aids which helped North Vietnam to win the war. There was none such support for Iraq. Iran and Syria, are much weaker and smaller than Soviet Union and China then. They themselves know they are the next target of the Neocon. They dare not to offend US by supporting the Iraq insurgence. To stay in Iraq, Neocon try to make a mess in Iraq - they need a civil war of Iraq. "

Then who support the insurgence and militias and Al Qaida the weapon they need? To my analysis, there is only one suspect: US. which has motives and ability.
The following news proved it's no others than US supplied weapon to the Iraqi insurgence and militias and Al Qaida, though media use the word "missing".

Quote, "ABC News: 190,000 AK-47s Sent to Iraq Are Missing

A young boy aims an AK-47 assault rifle during clashes between ... The Pentagon cannot account for 190,000 AK-47 rifles and pistols given to Iraqi ...

ABC News - ABC News

Do you have the conception how many is 190,000? It can arm a force bigger than the whole US occupation troop in Iraq. (170,000 after surge) Whom do you think are the receipants of these "missing" weapons?