Bill Clinton (1993-2001)
U.S. Intervention in Somalia
Ongoing conflict with Iraq (No-Fly Zone War)
Initiated/Engaged:
U.S. Invasion of Haiti in 1991-Operation Uphold Democracy
Bosnian War (1992-1995)-The U.S. participated, along with NATO, in a war against Bosnian Serbs and Serbia in Bosnia.
Kosovo War of 1999- The U.S. participated, along with NATO, in a war against Serbia in order to facilitate the independence of Kosovo.
1998 Bombings of U.S. Embassies in Kenya and Tanzania by al-Qaida terrorists.
U.S. Retaliation against al-Qaida in Sudan and Afghanistan -These incidents are often referred to as the actual start of the U.S. war with al-Qaida and Islamic Jihadist groups. This retaliation was called Operation Infinite Reach.
George W. Bush (2001-2009)
Inherited:
Ongoing hostility with Iran
No-Fly Zone War against Iraq
Conflict with al-Qaida
Initiated/Engaged:
Hainan Island Incident (2001)--A U.S. Navy EP-3 reconnaissance aircraft operating above the waters of the South China Sea was struck by a Chinese Air Force interceptor jet.
September 11, 2001 Terrorist Attacks
War in Afghanistan-The U.S invaded Afghanistan to fight al-Qaida and the Taliban
Invasion and Occupation of Iraq
Barack Obama (2009-2017)
Inherited:
Ongoing hostility with Iran
War in Afghanistan
War in Iraq-The U.S. officially withdrew from Iraq in December of 2011.
Conflict with al-Qaida-includes Drone War against al-Qaida and other Jihadist groups in Pakistan, Yemen, Libya, and elsewhere.
Initiated/Engaged:
Libyan War of 2011
War with ISIS-The U.S. military returned to Iraq in 2014 to fight against the Islamic State (ISIS or ISIL). This war also takes place in Syria, Libya, Yemen, and other nations.
U.S. aid to France in Mali War (2014)-U.S. provides air support, logistics, and other aid as France intervenes to stop Jihadist offensive in Mali
U.S. intervention in Joseph Kony conflict-U.S. troops aid Ugandan and other African militaries hunt down insurgent and terrorist Joseph Kony.
U.S. Intervention in Libyan Civil War (2014-Present)-U.S. involvement is primarily directed against Jihadist elements in Libya.
U.S. Intervention in Yemen Civil War -U.S. involvement is primarily directed against Jihadist elements in Yemen.
U.S. Intervention in Somali Civil War U.S. involvement is primarily directed against Jihadist elements in Somalia.
Donald J. Trump (2017-2021)
Inherited:
Ongoing hostility with Iran. This ongoing conflict escalated sharply in December 2019 and January of 2020, with Iranian-proxy forces (Iraqi Shiite militias) attacking U.S. bases in Iraq, killing American personnel. U.S. responded by killing a Shiite militia leader and a major figure in the Iranian Revolutionary Guards. Iran responded with missile attacks on two U.S. bases in Iraq, injuring over a hundred American troops.
War in Afghanistan
Wars Against ISIS, al-Qaida and other Islamic Jihadist groups in Iraq, Syria, Pakistan, Yemen, Libya, Somalia, northern Africa and elsewhere.
American Missile Strike on Syria (April 6, 2017)-In response to the Assad regime's apparant use of chemical weapons on a civilian target, the April 4 chemical attack in Khan Sheikhoun, United States President Donald Trump ordered a retaliatory strike against the Syrian air base at Al Shayrat. See also: American-Syrian Wars.
Joseph R. Biden (2021-Present)
Inherited:
Ongoing hostility with Iran.
In response to attacks (rockets and drones, primarily) the U.S. has launched retailatory strikes against Iran-backed (i.e. proxies for Iran) on these dates:
February 25, 2021: President Biden ordered retaliatory airstrikes on Iraqi Shiite militia targets located in eastern Syria. This was in response to an attack on February of 2021, when Iranian proxies (again, Iraqi Shiite militias) launched three attacks on American targets inside Iraq. One U.S.-mployed contractor was killed and U.S. troops were injured.
June 27, 2021: President Biden ordered retaliatory airstrikes on Iraqi Shiite militia targets located along the Iraq/Syria border. This was in response to drone attacks on bases in northern Iraq that housed U.S. forces. The two Shiite groups hit were the Kata’ib Hezbollah and Kata’ib Sayyid al-Shuhada militia groups. Iraqi media reported that four militia members died in the attack.
June 28, 2021: In response to the previous day's airstrikes, militia forces respond with rocket attacks on U.S. troops on the ground in Syria near al-Omar. The U.S. reported no American casualties, and responded with artillery fire at the "rocket-launching platforms."
War in Afghanistan (President Biden announced that U.S. forces would be withdrawn by September 11, 2021.
Wars Against ISIS, al-Qaida and other Islamic Jihadist groups in Iraq, Syria, Pakistan, Yemen, Libya, Somalia, northern Africa and elsewhere. This ongoing conflict with the terrorist group includes a successful special forces raid on the leader of ISIS, conducted in February of 2022. American forces attacked the ISIS -held building in the Idlib area of Syria. The ISIS leader, Abu Ibrahim al-Hashimi al-Qurashi, died in the raid on February 3, 2022. Rather than be captured, al-Qurashi blew himself, and his family up. The U.S. forces reported no American casualties.
In addition to the ongoing war with ISIS, U.S. forces have also sporadically been drawn into conflict with the Houthi faction in the Yemeni Civil War. The U.S. under Presidents Obama and Trump supported the Saudi-led coalition fighting the Iran-backed Houthis, though President Biden rescinded that support in 2021. However, in February, 2022, Houthi and allied Shiite Iraqi militias (the True Promise Brigades) conducted missile and drone attacks on targets in the United Arab Emirates (the UAE). The UAE is a member of the anti-Houthi coalition. American anti-missile defense units stationed in the UAE (where the U.S. has military bases), launched Patriot missiles at the incoming missiles. This was the first combat use by the United States of Patriot Missiles since the 1991 Gulf War. Source: Military Times