At issue was a May 20 agreement allowing Iraq to sell $ 2 billion worth of oil to purchase badly needed food , medicine and other supplies to ease the impact of sanctions in force since its troops invaded Kuwait in August 1990 .
<response> At issue was a May 20 agreement allowing <location>Iraq</location> to sell $ 2 billion worth of oil to purchase badly needed food , medicine and other supplies to ease the impact of sanctions in force since its troops invaded <location>Kuwait</location> in August 1990 . </response>