The U.S. government has shipped over 1.4 million guns to Iraq and Afghanistan since 9/11, according a new analysis by the U.K.-based watchdog Action on Armed Violence (AOAV), but the Pentagon is only able to account for fewer than half of them.

AOAV released its analysis of publicly available data on U.S. Department of Defense (DoD) contracts on Wednesday, and added that when requested to provide its own accounting for the small arms provided to the war-torn nations, "the DoD data shows that over 700,000 small arms were sent from the U.S. to Iraq and Afghanistan within these periods. However, this amount only accounts for 48 percent of the total small arms supplied by the U.S. government that can be found in open source government reports."

AOAV also noted that the total number of small weapons the U.S. provided to Iraq and Afghanistan is likely to be far higher than even the group's count, as the Pentagon kept such shoddy records of the planeloads of weapons it dispatched to those countries—if it kept any records at all.