U.S. military spending/defense budget for 2022 was 876.94 billion US dollars, a 8.77% increase from 2021.

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<li>U.S. military spending/defense budget for 2021 was <strong>806.23 billion US dollars</strong>, a <strong>3.58% increase</strong> from 2020.</li>
<li>U.S. military spending/defense budget for 2020 was <strong>778.40 billion US dollars</strong>, a <strong>6% increase</strong> from 2019.</li>
<li>U.S. military spending/defense budget for 2019 was <strong>734.34 billion US dollars</strong>, a <strong>7.6% increase</strong> from 2018.</li>
</ul>Military expenditures data from SIPRI are derived from the NATO definition, which includes all current and capital expenditures on the armed forces, including peacekeeping forces; defense ministries and other government agencies engaged in defense projects; paramilitary forces, if these are judged to be trained and equipped for military operations; and military space activities. Such expenditures include military and civil personnel, including retirement pensions of military personnel and social services for personnel; operation and maintenance; procurement; military research and development; and military aid (in the military expenditures of the donor country).

Graph and download economic data for Real government consumption expenditures and gross investment: Federal: National defense (A824RX1Q020SBEA) from Q1 2007 to Q1 2025 about defense, investment, gross, federal, consumption expenditures, consumption, government, real, GDP, and USA.

Between 1964 and 1975, military spending by the U.S. government increased by almost 75%. This period was marked by the increasing U.S. involvement in the Vietnam War, on the side of the South Vietnamese regime against the communist-led government of North Vietnam. Following Congress' authorization of direct military action following the Gulf of Tonkin incident in August 1964, military spending began to rise rapidly as the U.S. stationed ground troops in Vietnam and began Operation Rolling Thunder, at that time the largest bombing campaign in history.

Following the Tet Offensive by North Vietnamese forces in 1968, the U.S. began to scale back its involvement in the conflict, in a process known as 'vietnamization', whereby the Southern Vietnamese forces increasingly took charge of the war. The United States largely ceased military operations by the end of 1973, and the final U.S. service personnel left with the Fall of Saigon in 1975.

In 2023, the U.S. government had a budget deficit of 1.69 trillion U.S. dollars. This is compared to 2000, when the government had a budget surplus of 0.24 trillion U.S. dollars.

U.S. Government budget

The government budget is a financial statement that demonstrates the government’s suggested revenues and spending for the financial year. Budget surpluses occur when income exceeds expenditures. Budget deficits occur when spending exceeds income. The budget balance of the U.S. government has fluctuated since 2016, and is expected to decrease slightly by 2026.

Military spending

Defense outlays in the United States amounted to 714 billion U.S. dollars in 2020. It is expected to continue to increase over the next several years. The United States currently has the largest defense budget in the world, and is the largest employer in the world. The military budget funds the Army, Marine Corps, Navy, and Air Force. The amount of funding that goes towards the Department of Defense is heavily criticized by Democrats in the United States, because they believe that the funding should be more evenly distributed towards other social welfare programs such as public health insurance and education.

Between 1688 and 1968, Britain was arguably involved in more wars than any other nation or empire on the planet. During this 280 year period, the British government's investment into it's military strength increased greatly, and this level of investment allowed Britain to become the most powerful nation in the world for the majority of this period. Inflation rates and fluctuation of the pound Sterling's value make it difficult to compare military spending over extended periods of time, however, if we look at when the largest increases occur over short periods of time, then we can see a correlation between Britain's involvement in major wars and also times of great empirical expansion. Rule Britannia Before the twentieth century, Britain was able to become the world's hegemonic power (or the closest thing to it) because of it's military and naval might. In the past, some historians argued that Britain rose to this status accidentally, however it was their investment in military and naval capabilities that allowed them to colonize other civilizations, protect trade routes, and eliminate competition or threats. For example, Britain lost one of it's largest sources of income when the US gained independence in the late 1700s, therefore the government invested five times more money into it's navy than into the army (in 1785), in order to protect it's other colonies and trade routes, and to expand into other parts of the world. In the nineteenth century, the largest influx of cash into the military came in 1815, the same year that Britain and it's allies finally defeated Napoleon. The end of the Napoleonic Wars marked the beginning of the 'Pax Britannica', (1815-1914) which was a century of relative peace between the major European powers, and further expansion of the British Empire. Twentieth Century There was a large increase in military expenditure at the turn of the twentieth century, as the British Empire pushed further into new territories, particularly in Africa (in what is now known as the 'Scramble for Africa'). However, the largest increases came directly after both World Wars. It is also important to note that new budgets were introduced for the Air Force in the First World War, and then for Central Defense following the Second World War. Unfortunately there is no correlating data for the years during the World Wars, as the country was in a state of national emergency during these times, and parliament's system for budget allocation was different than in traditional years. Following the Second World War, Britain's investment in all military branches has increased exponentially, and today, Britain has the seventh highest military budget in the world.