Chapter 42 Terms and Definitions
- September 11 Attacks
The 2001 al-Qaeda terrorist attacks using hijacked airliners against the World Trade Center and the Pentagon, killing nearly 3,000 people.
- Al-Qaeda
The Islamist extremist terrorist network, led by Osama bin Laden, responsible for the September 11 attacks.
- Osama bin Laden
Al-Qaeda's founder and leader, mastermind of the September 11 attacks, killed by U.S. Navy SEALs in Pakistan in 2011.
- War on Terror
The global campaign declared by President George W. Bush against terrorist organizations and states that harbored them.
- USA PATRIOT Act
2001 law that greatly expanded government surveillance and law-enforcement powers to combat terrorism.
- Department of Homeland Security
Cabinet department created in 2002, consolidating dozens of agencies to focus on counterterrorism and disaster response.
- Operation Enduring Freedom
The U.S.-led military campaign launched in October 2001 against the Taliban and al-Qaeda in Afghanistan.
- Taliban
The fundamentalist Islamist movement that ruled Afghanistan and sheltered al-Qaeda before 2001, and retook power in 2021.
- Iraq War (2003)
The U.S.-led invasion that toppled Saddam Hussein based on since-discredited claims of weapons of mass destruction, followed by years of insurgency.
- Weapons of Mass Destruction (WMD)
Chemical, biological, or nuclear weapons that the Bush administration claimed Iraq possessed, justifying the 2003 invasion; none were found.
- The Surge (2007)
A significant increase in U.S. troop levels in Iraq intended to curb sectarian violence and stabilize the country.
- Subprime Mortgage Crisis
The collapse of risky home loans issued during the 2000s housing bubble, a central cause of the 2008 financial crisis.
- Lehman Brothers Collapse
The September 2008 bankruptcy of the major investment bank that froze global credit markets and deepened the financial crisis.
- Troubled Asset Relief Program (TARP)
The $700 billion 2008 federal program to stabilize major banks and financial institutions during the crisis.
- Great Recession
The severe economic downturn following the 2008 financial crisis, marked by mass unemployment and foreclosures.
- Barack Obama
Elected in 2008 as the first African American president, serving two terms (2009–2017) marked by the Great Recession's aftermath and healthcare reform.
- Affordable Care Act (2010)
Obama's signature healthcare law, popularly called "Obamacare," which expanded insurance coverage through subsidized marketplaces and Medicaid expansion.
- Death of Osama bin Laden (2011)
The May 2011 U.S. Navy SEAL raid on a compound in Pakistan that killed al-Qaeda's leader.
- Obergefell v. Hodges (2015)
The Supreme Court decision that legalized same-sex marriage nationwide.
- Polarization
The growing ideological and cultural divide between American political parties and media audiences in the 21st century.
- COVID-19 Pandemic
The global coronavirus pandemic that struck the United States beginning in 2020, killing over a million Americans and disrupting the economy and daily life.