NATO(North Atlantic Treaty Organization) is an intergovernmental military alliance established on April 4, 1949, through the signing of the North Atlantic Treaty, also known as the Washington Treaty. NATO was formed in the aftermath of World War II to provide collective defense against potential aggression, particularly from the Soviet Union during the Cold War. It is a political and military alliance between North America and Europe, aiming to safeguard the freedom and security of its member countries through diplomatic and military means.

NATO is based on the principle of collective defense, as outlined in Article 5 of the treaty, which states that an attack on one member is considered an attack on all members. This principle was invoked for the first time after the 9/11 attacks in the United States. The alliance is composed of 31 member countries (as of 2023), including the United States, Canada, and most European nations. NATO has expanded over the decades, with countries from Eastern Europe joining after the end of the Cold War, reflecting the organization's evolving role in global security.

In addition to its original mission of deterring Soviet aggression, NATO has taken on new roles in the post-Cold War era, including crisis management, peacekeeping operations, and counterterrorism efforts. NATO has been involved in operations in the Balkans, Afghanistan, Libya, and more recently, it has been a key player in discussions surrounding the security of Eastern Europe and Russia-Ukraine tensions. NATO continues to play a critical role in maintaining transatlantic security and addressing new global challenges, such as cyber threats, terrorism, and the rise of authoritarianism.

In December 2023, BOOM investigated a viral image falsely claimed to show the Nashville shooter's room decorated with Pride, Transgender, and NATO flags.

BOOM found that the image was originally posted in December 2021 by a Twitter user, showing her untidy room before and after she cleaned it, and had no connection to the Nashville shooter incident.