What best explains how the global war on terror changed way that America was involved with rest of world?

The global war on terror led to increased American military involvement overseas and a focus on counterterrorism efforts. After the terrorist attacks of September 11, 2001, the United States invaded Afghanistan in order to topple the Taliban regime, which was harbouring al-Qaeda, the terrorist group responsible for the attacks. In 2003, the United States also invaded Iraq, claiming that the country possessed weapons of mass destruction (which were never found). These invasions, and the subsequent counterinsurgency campaigns that followed, significantly increased the US military presence in the Middle East and Central Asia.

At the same time, the global war on terror also led to increased surveillance and security measures within the United States. The Patriot Act, which was passed shortly after 9/11, gave the government broad new powers to collect intelligence and wiretap communications. The Department of Homeland Security was also created in response to 9/11, and the Transportation Security Administration (TSA) was tasked with enhancing security at airports and other transportation hubs. These measures have been controversial, with some critics arguing that they violate civil liberties and privacy rights.

The global war on terror has also had a significant impact on US foreign policy. The United States has become more focused on counterterrorism efforts, and has increasingly used military force to achieve its goals. This has led to strained relations with some countries, including Pakistan and Iran, which have been accused of supporting terrorism.

Some experts argue that the global war on terror has made the United States less safe, by creating new terrorist threats and alienating potential allies. Others argue that it has been necessary to protect the United States from further attacks, and that the measures taken have been warranted. The global war on terror is a complex issue with no easy answers, and it will continue to be debated for years to come.