SAC/SOG paramilitary officers executed the clandestine evacuation of U.S. citizens and diplomatic personnel in Somalia, Iraq (during the Persian Gulf War) and Liberia during periods of hostility, as well as the insertion of Paramilitary Operations Officers prior to the entry of U.S. military forces in every conflict since World War II. SAC officers have operated covertly since 1947 in places such as North Korea, Vietnam, Laos, Cambodia, Lebanon, Iran, Syria, Libya, Iraq, El Salvador, Guatemala, Colombia, Mexico, Nicaragua, Honduras, Chile, Bosnia and Herzegovina, Serbia, Somalia, Kosovo, Afghanistan and Pakistan.