The United States-led invasion of the Republic of Iraq was the first stage of the Iraq War. The invasion phase began on 19 March 2003 (air) and 20 March 2003 (ground) and lasted just over one month, including 26 days of major combat operations, in which a combined force of troops from the United States, the United Kingdom, Australia and Poland invaded Iraq. Twenty-two days after the first day of the invasion, the capital city of Baghdad was captured by coalition forces on 9 April 2003 after the six-day-long Battle of Baghdad. This early stage of the war formally ended on 1 May 2003 when U.S. President George W. Bush declared the "end of major combat operations" in his Mission Accomplished speech, after which the Coalition Provisional Authority (CPA) was established as the first of several successive transitional governments leading up to the first Iraqi parliamentary election in January 2005. U.S. military forces later remained in Iraq until the withdrawal in 2011.
The 1998 bombing of Iraq was a major four-day bombing campaign on Iraqi targets from 16 to 19 December 1998, by the United States and the United Kingdom. On 16 December 1998, Bill Clinton announced that he had ordered strikes against Iraq. The strikes were launched as a result of Iraq's failure to comply with United Nations Security Council resolutions and its interference with United Nations Special Commission inspectors who were looking for weapons of mass destruction. The inspectors had been sent in 1997 and were repeatedly refused access to certain sites, this used by the United States to begin military action.
The Iraqi no-fly zones conflict was a low-level conflict in the two no-fly zones (NFZs) in Iraq that were proclaimed by the United States, United Kingdom, and France after the Gulf War of 1991. The United States stated that the NFZs were intended to protect the ethnic Kurdish minority in northern Iraq and Shiite Muslims in the south. Iraqi aircraft were forbidden from flying inside the zones. The policy was enforced by the United States and the United Kingdom until 2003, when it was rendered obsolete by the 2003 invasion of Iraq. French aircraft patrols also participated until France withdrew in 1996.
The main event by far shaping the foreign policy of the United States during the presidency of George W. Bush (2001–2009) was the 9/11 terrorist attacks against the United States on September 11, 2001, and the subsequent war on terror. There was massive domestic and international support for destroying the attackers. With UN approval, US and NATO forces quickly invaded the attackers' base in Afghanistan and drove them out and the Taliban government that harbored them. It was the start of a 20-year quagmire that finally ended in failure with the withdrawal of United States troops from Afghanistan.
This timeline of United States government military operations, based in part on reports by the Congressional Research Service, shows the years and places in which U.S. military units participated in armed conflicts or occupation of foreign territories. Items in bold are wars most often considered to be major conflicts by historians and the general public.
On May 1, 2003, United States President George W. Bush gave a televised speech on the aircraft carrier USS Abraham Lincoln. Bush, who had launched the U.S.-led invasion of Iraq six weeks earlier, mounted a podium before a White House-produced banner that said "Mission Accomplished". Reading from a prepared text, he said, "Major combat operations in Iraq have ended. In the battle of Iraq, the United States and our allies have prevailed" because "the regime [the Iraqi dictatorship of Saddam Hussein] is no more". Although Bush went on to say that "Our mission continues" and "We have difficult work to do in Iraq," his words implied that the Iraq War was over and America had won.
Operation Deny Flight was a North Atlantic Treaty Organization (NATO) operation that began on 12 April 1993 as the enforcement of a United Nations (UN) no-fly zone over Bosnia and Herzegovina. The United Nations and NATO later expanded the mission of the operation to include providing close air support for UN troops in Bosnia and carrying out coercive air strikes against targets in Bosnia. Twelve NATO members contributed forces to the operation and, by its end on 20 December 1995, NATO pilots had flown 100,420 sorties.
Al Udeid Air Base is one of two military bases southwest of Doha, Qatar, also known as Abu Nakhlah Airport.
Operation Southern Watch was an air-centric military operation conducted by the United States Department of Defense from Summer 1992 to Spring 2003.
The war on terror, officially the Global War on Terrorism (GWOT), is a global military campaign initiated by the United States following the September 11 attacks and is the most recent global conflict spanning multiple wars. The main targets of the campaign are militant Islamist movements like Al-Qaeda, Taliban and their allies. Other major targets included the Ba'athist regime in Iraq, which was deposed in an invasion in 2003, and various militant factions that fought during the ensuing insurgency. After its territorial expansion in 2014, the Islamic State militia has also emerged as a key adversary of the United States.
On 19 March 2011, a multi-state NATO-led coalition began a military intervention in Libya to implement United Nations Security Council Resolution 1973, in response to events during the First Libyan Civil War. With ten votes in favour and five abstentions, the intent of the UN Security Council was to have "an immediate ceasefire in Libya, including an end to the current attacks against civilians, which it said might constitute 'crimes against humanity' ... [imposing] a ban on all flights in the country's airspace — a no-fly zone — and tightened sanctions on the Muammar Gaddafi regime and its supporters."
Operation Odyssey Dawn was the U.S. code name for the American role in the international military operation in Libya to enforce United Nations Security Council Resolution 1973 during the initial period of 19–31 March 2011, which continued afterwards under NATO command as Operation Unified Protector. The initial operation implemented a no-fly zone that was proposed during the Libyan Civil War to prevent government forces loyal to Muammar Gaddafi from carrying out air attacks on anti-Gaddafi forces. On 19 March 2011, several countries prepared to take immediate military action at a summit in Paris. Operations commenced on the same day with a strike by French fighter jets, then US and UK forces conducting strikes from ships and submarines via 110 Tomahawk cruise missiles and air assets bombing Gaddafi forces near Benghazi. The goal of coalition forces was to impose a no-fly zone for Libyan government forces.
The domestic reactions in the United States after the 2011 military intervention in Libya ranged from criticism to support. Unlike the revolutions in Tunisia and Egypt, which were carried out largely without external intervention, the brutal reaction of the Gaddafi regime to the protests that began in January and February 2011 quickly made it clear that the Libyan opposition forces would not be able to achieve political progress or to overthrow their government by themselves. In light of ongoing serious human rights violations, the United Nations Security Council established a no-fly zone over Libya and authorized the member states of the UN to take all necessary measures to protect civilians and civilian populated areas under threat of attack. Two days later, a coalition of states—including the United States, the United Kingdom, and France—began to carry out air strikes against military targets in Libya. By the end of March 2011, NATO had taken over the international military operation in Libya. With the support of NATO, the insurgents successively took power in Libya, gaining control over the capital, Tripoli, in August and over Sirte, the last city held by the Gaddafi regime, in October 2011. During the fights over Sirte, Gaddafi was killed. With the insurgents taking control over most of the country and being recognized as the legitimate (transitional) government of Libya by much of the international community, a change in the Libyan regime has taken place.
In response to rapid territorial gains made by the Islamic State during its 2014 Northern Iraq offensives, universally condemned executions, human rights abuses and the fear of further spillovers of the Syrian Civil War, many states began to intervene against it in both the Syrian Civil War and the War in Iraq (2013–2017). These efforts are called the War against the Islamic State, or the War against ISIS. In later years, there were also minor interventions by some states against IS-affiliated groups in Nigeria and Libya. All these efforts significantly degraded the Islamic State's capabilities by around 2019–2020. While moderate fighting continues in Syria, as of 2023, ISIS has been contained to a manageably small area and force capability.
On 22 September 2014, the United States officially intervened in the Syrian civil war with the stated aim of fighting the Islamic State as part of Operation Inherent Resolve in the international war against the Islamic State. The U.S. also supports the Syrian rebels and the Kurdish-led Syrian Democratic Forces opposed to both the Islamic State and Syrian president Bashar al-Assad.
Opération Chammal is a French military operation in Iraq and Syria launched to help curtail the expansion of the Islamic State of Iraq and the Levant and to support the Iraqi Army. Its name comes from the Shamal, a northwesterly wind that blows over Iraq and the Persian Gulf states.
On 15 June 2014, U.S. President Barack Obama ordered United States forces to be dispatched in response to the Northern Iraq offensive of the Islamic State (IS) as part of Operation Inherent Resolve. At the invitation of the Iraqi government, American troops went to assess Iraqi forces and the threat posed by ISIL.
Operation Inherent Resolve (OIR) is the United States military's operational name for the international war against the Islamic State (IS), including both a campaign in Iraq and a campaign in Syria, with a closely related campaign in Libya. Through 18 September 2018, the U.S. Army's III Armored Corps was responsible for Combined Joint Task Force – Operation Inherent Resolve (CJTF—OIR) and were replaced by the XVIII Airborne Corps. The campaign is primarily waged by American and British forces in support of local allies, most prominently the Iraqi security forces and Syrian Democratic Forces (SDF). Combat ground troops, mostly special forces, infantry, and artillery have also been deployed, especially in Iraq. Of the airstrikes, 70% have been conducted by the military of the United States, 20% by the United Kingdom and the remaining 10% being carried out by France, Turkey, Canada, the Netherlands, Denmark, Belgium, Saudi Arabia, the United Arab Emirates, Australia and Jordan.
The US intervention in the Syrian civil war is the United States-led support of Syrian opposition and the Federation of Northern Syria during the course of the Syrian Civil War and active military involvement led by the United States and its allies — the militaries of the United Kingdom, France, Jordan, Turkey, Canada, Australia and more — against the Islamic State of Iraq and the Levant (ISIL) and al-Nusra Front since 2014. Since early 2017, the U.S. and other Coalition partners have also targeted the Syrian government and its allies via airstrikes and aircraft shoot-downs.
On February 25, 2021, the United States military carried out an airstrike on a site which it believed to have been occupied by Iranian-backed Iraqi militias operating from across the border in eastern Syria. The unilateral operation was in retaliation for multiple rocket attacks against U.S. forces in Iraq ten days prior and was the first known offensive military operation carried out under U.S. president Joe Biden.
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