is partly but not fully acknowledged. Some examples of political action programs were the prevention of the Italian Communist Party (PCI) from winning elections between 1948 and the late 1960s; overthrowing the governments of Iran in 1953 and Guatemala in 1954; arming rebels in Indonesia in 1957; and providing funds and support to the trade union federation Solidarity following the imposition of martial law in Poland after 1981. SAC's existence became better known as a result of the "War on Terror". Beginning in autumn of 2001, SAC/SOG paramilitary teams arrived in Afghanistan to hunt down al-Qaeda leaders, facilitate the entry of U.S. Army Special Forces, and lead the United Islamic Front for the Salvation of Afghanistan against the ruling Taliban. SAC/SOG units also defeated Ansar al-Islam in Iraqi Kurdistan prior to the invasion of Iraq in 2003, and trained, equipped, organized and led the Kurdish peshmerga forces to defeat the Iraqi Army in northern Iraq. Despite (or because of) SAC/SOG being the most covert unit in U.S. special operations, numerous books have been published on the exploits of CIA paramilitary officers, including Conboy and Morrison's Feet to the Fire: CIA Covert Operations in Indonesia, 1957–1958, and Warner's Shooting at the Moon: The Story of America's Clandestine War in Laos. Most experts consider SAC/SOG the premier force for unconventional warfare (UW), whether that warfare consists of either creating or combating an insurgency in a foreign country. There remains some conflict between the CIA's Directorate of Operations and the more clandestine parts of the United States Special Operations Command (USSOCOM), such as the Joint Special Operations Command. This is usually confined to the civilian/political heads of the respective Department/Agency. The combination of SAC and USSOCOM units has resulted in some of the more prominent actions of the wars in Iraq and Afghanistan, including the locating and killing of Osama bin Laden. SAC/SOG has several missions, one being the recruiting, training, and leading of indigenous forces in combat operations. SAC/SOG and its successors have been used when it was considered desirable to have plausible deniability about US support (this is called a covert operation or "covert action"). Unlike other special missions units, SAC/SOG operatives combine special operations and clandestine intelligence capabilities in one individual. These individuals can operate in any environment (sea, air or ground) with limited to no support. Covert action The CIA is authorized to collect intelligence, conduct counterintelligence, and conduct