In 2025, the United States had the largest number of active military personnel out of all North Atlantic Treaty Organization (NATO) countries, with almost *** million troops. The country with the second-largest number of military personnel was Türkiye, at around ******* active personnel. Additionally, the U.S. has by far the most armored vehicles in NATO, as well as the largest Navy and Air Force. NATO in brief NATO, which was formed in 1949, is the most powerful military alliance in the world. At its formation, NATO had 12 member countries, which by 2024 had increased to 32. NATO was originally formed to deter Soviet expansion into Europe, with member countries expected to come to each other’s defense in case of an attack. Member countries are also obliged to commit to spending two percent of their respective GDPs on defense, although many states have recently fallen far short of this target. NATO in the contemporary world Some questioned the purposed of NATO after the fall of the Berlin Wall in 1989 and the collapse of the Soviet Union a few years later. In 2019, French President Emmanuel Macron even called the organization 'brain-dead' amid dissatisfaction with the leadership of the U.S. President at the time, Donald Trump. NATO has, however, seen a revival after Russia's President Vladimir Putin decided to invade Ukraine in February 2022. Following the invasion, Sweden and Finland both abandoned decades of military neutrality and applied to join the alliance, with Finland joining in 2023, and Sweden in 2024.

As of 2025,the combined forces of NATO had approximately 3.44 million active military personnel, compared with 1.32 million active military personnel in the Russian military. The collective military capabilities of the 32 countries that make up NATO outnumber Russia in terms of aircraft, at 22,377 to 4,957, and in naval power, with 1,143 military ships, to 419. In terms of ground combat vehicles, NATO had an estimated 11,495 main battle tanks, to Russia's 5,750. The combined nuclear arsenal of the United States, United Kingdom, and France amounted to 5,559 nuclear warheads, compared with Russia's 5,580. NATO military spending In 2024, the combined military expenditure of NATO states amounted to approximately 1.47 trillion U.S. dollars, with the United States responsible for the majority of this spending, as the U.S. military budget amounted to 967.7 billion dollars that year. The current U.S. President, Donald Trump has frequently taken aim at other NATO allies for not spending as much on defense as America. NATO member states are expected to spend at least two percent of their GDP on defense, although the U.S. has recently pushed for an even higher target. As of 2024, the U.S. spent around 3.38 percent of its GDP on defense, the third-highest in the alliance, with Estonia just ahead on 3.43 percent, and Poland spending the highest share at 4.12 percent. US aid to Ukraine The pause in aid to Ukraine from the United States at the start of March 2025 marks a significant policy change from Ukraine's most powerful ally. Throughout the War in Ukraine, military aid from America has been crucial to the Ukrainian cause. In Trump's first term in office, America sent a high number of anti-tank Javelins, with this aid scaling up to more advanced equipment after Russia's full-scale invasion in 2022. The donation of around 40 HIMARs rocket-artillery system, for example, has proven to be one of Ukraine's most effective offensive weapons against Russia. Defensive systems such as advanced Patriot air defense units have also helped protect Ukraine from aerial assaults. Although European countries have also provided significant aid, it is unclear if they will be able to fill the hole left by America should the pause in aid goes on indefinitely.

This statistic shows the total population of the Netherlands from 2020 to 2024, with projections up until 2030. In 2024, the total population of the Netherlands was around 17.94 million people. Population of the Netherlands Despite its small size, the Netherlands is the twenty-third smallest nation in the European Union, and it is one of the most important nations in Europe and the world. The Netherlands is a founding member of the European Union, a member of the Group of Ten, and NATO. The total population of the Netherlands has rapidly increased over the past decade. Between 2004 and 2014, the total population increased by around 600 thousand people, currently estimated to be around 16.9 million altogether. The biggest cities in the Netherlands include Amsterdam, Rotterdam, and The Hague, with Amsterdam alone being home to almost 800 thousand residents. Among other factors, the Netherlands' increasing population is due to high life expectancy, economic growth and job opportunities. In 2011, the population of the Netherlands grew by around 0.47 percent in comparison to 2010. That same year, life expectancy at birth in the Netherlands was a little over 81 years, the highest recorded life expectancy since 2001. In addition, the unemployment rate in the Netherlands is one of the lowest unemployment rates in all of Europe.

As of March 2025, 89 percent of Poles supported NATO membership, while opponents of the alliance membership accounted for only two percent of all respondents. Support for Poland's membership in NATO was the highest in 2022. It changed dramatically in 2014, when the Russian Federation annexed Crimea and the Russian invasion of Ukraine in February 2022.

How many soldiers does Russia have? The Russian Armed Forces had 3.57 million troops as of 2025, with 37 percent of them, or 1.32 million, being active military personnel. Two million were reserve service members, and 250,000 were paramilitary forces. The number of people in the Russian military was increased twice after the invasion of Ukraine; the respective presidential decrees came into force in January and December 2023. Largest armies worldwide The Russian Army had the fourth-largest available active military manpower in 2025, having shared that rank with North Korea. The militaries of China, India, and the United States had more active soldiers. In terms of defense spending, Russia ranked third after the U.S. and China. Military personnel of Ukraine and NATO Russia’s active troops outnumbered Ukraine’s by 420,000 as of 2025. Furthermore, reserve and paramilitary forces of Russia were higher. When comparing Russia’s active military personnel to that of the countries in the North Atlantic Treaty Organization (NATO), it was roughly 2.6 times smaller. In total, NATO members were estimated to over 3.4 million troops, including active, reserve, and paramilitary units. The U.S., Turkey, and Poland have the largest armies in NATO.

Three out of four Ukrainians would vote for their country's accession to the North Atlantic Treaty Organization (NATO), according to a survey from September 2024. Less than 10 percent of respondents were against Ukraine's membership in NATO. The highest level of support toward the accession was recorded in western Ukraine. The majority of Ukrainians expected their country to join NATO until 2032.