President Joe Biden and leaders from the 32 NATO members are gathering in Washington to celebrate the alliance's 75th anniversary.

The summit occurs amid escalating tensions with Russia over its aggression in Ukraine.

NATO, founded in 1949, focuses on defending its member countries, including recent additions Finland and Sweden.

While NATO as an organization does not arm Ukraine, member countries provide non-lethal support and training to Ukraine's armed forces.

NATO has 500,000 troops on high readiness and has increased military exercises along its eastern flank, sending a strong message to Russia.

The summit will address increasing defense spending to meet targets and the need to reassure Ukraine without direct military intervention.

The U.S. plays a significant role in NATO due to its defense spending; however, other allies are also increasing their contributions.

NATO's role in promoting security, prosperity, and shared values is underscored, especially in the face of challenges like Russian aggression in Ukraine.