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).
Convinced the Americans would invade Iraq, Zarqawi began building a base there in 2002; when they did so a year later, he proved willing to ally with remnants of Saddamâs intelligence network. The story is well told by William McCants in his excellent new book, The ISIS Apocalypse.