If it's gastritis (or an irritating of the stomach lining) or an ulcer, you'll most likely have a burning sensation in your upper abdomen that gets better or worse with eating. Take an OTC antacid such as Pepcid or Zantac, but if symptoms persist for more than a week, call your doctor.
The 2003 invasion of Iraq lasted from 20 March to 1 May 2003 and signalled the start of the Iraq War, which was dubbed Operation Iraqi Freedom by the United States (prior to 19 March, the mission in Iraq was called Operation Enduring Freedom, a carryover from the War in Afghanistan).
US and other coalition troops remained in Iraq in a combat role until 2010, as security operations were gradually handed over to Iraqis. Some 4,488 US service personnel died in Iraq since the start of Operation Iraqi Freedom on 19 March 2003, according to the latest figures from the US Department of Defense.