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  2. Pullback | Wikipedia

    en.wikipedia.org/wiki/Pullback

    Precomposition with a function probably provides the most elementary notion of pullback: in simple terms, a function of a variable where itself is a function of another variable may be written as a function of This is the pullback of by the function. It is such a fundamental process that it is often passed over without mention.

  3. United States involvement in regime change | Wikipedia

    en.wikipedia.org/wiki/United_States_involvement...

    In the latter half of the 19th century, the U.S. government initiated actions for regime change mainly in Latin America and the southwest Pacific, including the Spanish–American and Philippine–American wars. At the onset of the 20th century, the United States shaped or installed governments in many countries around the world, including ...

  4. 2020–2021 U.S. troop withdrawal from Afghanistan | Wikipedia

    en.wikipedia.org/wiki/2020–2021_U.S._troop...

    The United States Armed Forces completed their withdrawal from Afghanistan on 30 August 2021, marking the end of the 2001–2021 war.In February 2020, the Trump administration and the Taliban signed the United States–Taliban deal in Doha, Qatar, [7] which stipulated fighting restrictions for both the US and the Taliban, and in return for the Taliban's counter-terrorism commitments, provided ...

  5. Canada further tightens rules on temporary workers, students

    www.aol.com/news/canada-further-tightens-rules...

    Nonetheless, after years of increasing Canada's ranks of temporary residents, its federal government is seeking to pull back. In January, the government placed a two-year cap on international ...

  6. Rollback | Wikipedia

    en.wikipedia.org/wiki/Rollback

    American troops detain members of the Grenadian PRA in 1983.. In political science, rollback is the strategy of forcing a change in the major policies of a state, usually by replacing its ruling regime.

  7. Modern liberalism in the United States | Wikipedia

    en.wikipedia.org/wiki/Modern_liberalism_in_the...

    Modern liberalism (often simply referred to in the United States as liberalism) is the dominant version of liberalism in the United States. It combines ideas of civil liberty and equality with support for social justice and a mixed economy. According to American philosopher Ian Adams, all major American parties are " liberal and always have been.

  8. Patriot Act | Wikipedia

    en.wikipedia.org/wiki/Patriot_act

    Patriot Act. An Act to deter and punish terrorist acts in the United States and across the globe, to enhance law enforcement investigatory tools, and for other purposes. The USA PATRIOT Act (commonly known as the Patriot Act) was a landmark Act of the United States Congress, signed into law by President George W. Bush.

  9. Thrown Out Back: Causes, Symptoms, and Treatments | Healthline

    www.healthline.com/health/back-pain/thrown-out-back

    Symptoms. Throwing out your back can cause the following symptoms: back stiffness that keeps you from moving well. intense low back pain. muscle spasms, or intense bouts of muscle tightening and ...