The U.S. Army remains the largest branch of the American military, with 449,344 active duty personnel in 2023. While the Army leads in numbers, the newly established Space Force had just 8,879 active duty members, highlighting the evolving nature of modern warfare and the increasing importance of space-based capabilities. Confidence in military remains high Despite fluctuations in force size, public trust in the U.S. military remains strong. In 2024, 61 percent of Americans expressed a great deal or quite a lot of confidence in the armed forces, a slight increase from the previous year. While a slightly higher share of Republicans have shown more confidence in the military, trust in the institution remains high across party lines. Global commitments The United States continues to invest heavily in its military capabilities, with defense spending reaching 916.02 billion U.S. dollars in 2023. This substantial budget supports not only domestic defense needs but also enables the U.S. to respond to global crises, as evidenced by the over 40 billion euros in military aid provided to Ukraine following Russia's invasion. The high level of spending, which translates to about 2,220 U.S. dollars per capita.

In 2023, there were around 1.11 million active duty U.S. Armed Forces personnel stationed within the United States. In that year, there were 156,418 U.S. Armed Forces personnel stationed in California, the most of any state.

The graph illustrates the number of personnel in each branch of the U.S. Military for the year 2025. The x-axis lists the military branches: Army, Navy, Marine Corps, Air Force, and Coast Guard. The y-axis represents the number of personnel, ranging from 41,689 to 452,823. Among the branches, the Army has the highest number of personnel with 452,823, followed by the Navy with 337,209 and the Air Force with 321,211. The Marine Corps and Coast Guard have 170,201 and 41,689 personnel, respectively. The data is displayed in a bar graph format, effectively highlighting the distribution of military personnel across the different branches.

In 2023, there were 1.27 million active duty U.S. Department of Defense members, including officers and enlisted personnel. This represents a slight decrease in comparison to the previous year. Further, by 2034, it is expected that the number of military retirees in the country will reach 2.4 million.

In the United States, active duty Armed Forces personnel tended to be young, with the majority under the age of 30 years old. In 2023, there were 546,361 U.S. Defense Armed personnel aged 25 and under. In the age group 26 to 30, there were 275,756 Armed Forces personnel.

This dataset displays the number of active duty personnel and their location, by country. Included in these figures are the numbers for Army, Navy, Marine, and Air Force branches of the United States Military. Note: this data includes rounded figures for personnel involved in Operation Iraqi Freedom (OIF)and Operation Enduring Freedom (OEF). This data was collected from the department of Defense directly at: http://siadapp.dmdc.osd.mil/personnel/MILITARY/history/hst0706.pdf .

As of May 2025, China had the largest armed forces in the world by active duty military personnel, with about two million active soldiers. India, the United States, North Korea, and Russia rounded out the top five largest armies. Difference between active and reserve personnel Active personnel, also known as active duty in the United States and active service in the United Kingdom, are those individuals whose full-time occupation is being part of a military force. Active duty contrasts with a military’s reserve force, which are individuals who have both a military role and a civilian career. The number of active duty forces in the U.S. is much larger than its reserve membership. What is the strongest army? The strength of a country’s armed forces is not only determined by how many personnel they maintain, but also the number and quality of their military equipment. For example, looking only at personnel does not factor in the overwhelmingly higher number of nuclear warheads owned by Russia and the United States compared to other countries. One way to answer this question is to look at the total amount of money each country spends on their military, as spending includes both personnel and technology. In terms of countries with the highest military spending, the United States leads the world with an annual budget almost three times larger than second-placed China.

There were 449,344 active duty U.S. Army members in 2023. This amount represents a slight decrease in comparison to the number recorded in the previous year. Overall, there were 1.27 million active duty U.S. Department of Defense members, including officers and enlisted personnel in 2023.

Detailed listing of all U.S. Military Active Duty deaths since 1/1/2001 giving branch of service, age at death, military occupational code, location of death, and casualty category

NOTE: 2001-2013 enlisted totals include "cadets-midshipmen" so officer+enlisted=total. This may not be the correct assumption, but the historical tables only have "officer" and "enlisted" totals.

This graph shows the total number of active duty U.S. military personnel by service branch as of 2010. At this time there were 323,139 military personnel in the Navy and 329,640 personnel in the Air Force.

Armed forces personnel, total in World was reported at 27406000 in 2020, according to the World Bank collection of development indicators, compiled from officially recognized sources. World - Armed forces personnel, total - actual values, historical data, forecasts and projections were sourced from the World Bank on September of 2025.

In 2024, there were estimated to be approximately 35,068 active-duty United States military personnel in Germany, the highest of any European country.

This data set illustrates the number of active troops by active service, reserve force, paramilitary, total troops, and active troops per thousand people across the globe. http://en.wikipedia.org/wiki/List_of_countries_by_number_of_active_troops August 27, 2007

Romania RO: Armed Forces Personnel: Total data was reported at 149,200.000 Person in 2016. This records a decrease from the previous number of 150,400.000 Person for 2015. Romania RO: Armed Forces Personnel: Total data is updated yearly, averaging 177,000.000 Person from Dec 1985 (Median) to 2016, with 29 observations. The data reached an all-time high of 307,500.000 Person in 1996 and a record low of 126,000.000 Person in 1990. Romania RO: Armed Forces Personnel: Total data remains active status in CEIC and is reported by World Bank. The data is categorized under Global Database’s Romania – Table RO.World Bank.WDI: Defense and Official Development Assistance. Armed forces personnel are active duty military personnel, including paramilitary forces if the training, organization, equipment, and control suggest they may be used to support or replace regular military forces.; ; International Institute for Strategic Studies, The Military Balance.; Sum; Data for some countries are based on partial or uncertain data or rough estimates.

This dataset displays the number of active duty military personnel injuries and deaths during Operation Enduring Freedom and Operation Iraqi Freedom. This data is current as of April 26, 2008. It displays statistics regarding hostile, and non hostile deaths and injuries. These figures are broken down by state. * WIA (act) = Actual Wounded in Action (WIA) with home of record for the specified state H=Hostile; NH=Non-hostile * WIA (est) = Additional estimated WIA for the state based on reported losses (not all WIA records have home of record detail)

The map data is derived from the United Nations Environment Programme (UNEP) for the years ranging from 1989 to 1999. The map shows the concentration of the total military personnel by country measured in number of people. According to UNEP, military personnel refers to "active duty military personnel, including paramilitary forces if those forces resemble regular units in their organization, equipment, training, or mission." Online resource: http://geodata.grid.unep.ch URL original source: http://www.worldbank.org/data/

Armed forces personnel of Georgia remained stable at 26,000 number over the last 1 years. Armed forces personnel are active duty military personnel, including paramilitary forces if the training, organization, equipment, and control suggest they may be used to support or replace regular military forces.

Detailed listing of all U.S. Military Active Duty deaths for 2005

Detailed listing of all U.S. Military Active Duty deaths for 2001