We have opened a high-level investigation into this issue," he added. The shooting comes two days after Dead us soldiers in iraq suicide attack on an Iraqi army complex in Baghdad killed 12 people and wounded 29 others. Al Jazeera's Rawya Rageh, reporting from Baghdad, said: The US military suicide rate, historically low, has climbed significantly sinceas have injuries and deaths among non-deployed personnel. The number of contractors in these roles is increasing as the US Dead us soldiers in iraq a growing number of uniformed troops back to Iraq to fight the Islamic State. The Pentagon and the VA should expand their tracking of war-related post-deployment deaths including suicidesinjuries, and illnesses of service members regardless of whether they receive VA treatment.