examples from World War II show how assassination was used as a tool: The assassination of Reinhard Heydrich in Prague on May 27, 1942, by the British and Czechoslovak government-in-exile. That case illustrates the difficulty of comparing the benefits of a foreign policy goal (strengthening the legitimacy and influence of the Czechoslovak government-in-exile in London) against the possible costs resulting from an assassination (the Lidice massacre). The American interception of Admiral Isoroku Yamamoto's plane during World War II after his travel route had been decrypted. Operation Gaff was a planned British commando raid to capture or kill the German field marshal Erwin Rommel, also known as "The Desert Fox". Use of assassination has continued in more recent conflicts: During the Vietnam War, the US engaged in the Phoenix Program to assassinate Viet Cong leaders and sympathizers. It killed between 6,000 and 41,000 people, with official "targets" of 1,800 per month. With the January 3, 2020 Baghdad International Airport airstrike, the US assassinated the commander of Iran's Quds Force General Qasem Soleimani and the commander of Iraq's Popular Mobilization Forces Abu Mahdi al-Muhandis, along with eight other high-ranking military personnel. The assassination of the military leaders was part of escalating tensions between the US and Iran and the American-led intervention in Iraq. As a tool of insurgents Insurgent groups have often employed assassination as a tool to further their causes. Assassinations provide several functions for such groups: the removal of specific enemies and as propaganda tools to focus the attention of media and politics on their cause. The Irish Republican Army guerrillas in 1919 to 1921 killed many Royal Irish Constabulary Police intelligence officers during the Irish War of Independence. Michael Collins set up a special unit, the Squad, for that purpose, which had the effect of intimidating many policemen into resigning from the force. The Squad's activities peaked with the killing of 14 British agents in Dublin on Bloody Sunday in 1920. The tactic was used again by the Provisional IRA during the Troubles in Northern Ireland (1969–1998). Killing Royal Ulster Constabulary officers and assassination of unionist politicians was one of a number of methods used in the Provisional IRA campaign 1969–1997. The IRA also attempted to assassinate British Prime Minister Margaret Thatcher by bombing the Conservative Party Conference in a Brighton hotel. Loyalist paramilitaries retaliated by killing Catholics at random and assassinating Irish nationalist politicians. Basque separatists ETA in