The Most Expensive Wars in Which America Participated: It Cost Them Trillions of Dollars!


While some lasted only a few weeks or months, some extended to several years, and although Americans have entered some of the wars at the very end, a large amount of money was spent on them

Since its founding in 1776, the United States has participated in wars throughout almost its entire existence.

Some were short, some long, some lost and some won. Some of them cost the United States big money, according to War History Online.

These are the 10 most expensive wars in which the US has participated:

The Mexican-American War

The Mexican-American war cost US taxpayers about $ 2.4 billion.

The war was fought from 1846 to 1848. It was the result of the annexation of Texas, in which the state of Texas became a state in the United States.

Texas was initially the territory of Mexico, but the revolution of 1836 caused the territory to become its own state.

However, the United States did not allow Texas to become a state after the revolution, fearing that it could be corrupted by the equality of states that were for/against slavery. That changed during the 1840s and led to the start of the war.

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The Revolutionary War

Although many may believe that the American Revolution began with the signing of the Declaration of Independence on July 4, 1776, the war actually began in April 1775.

It all began when a local Massachusetts militia clashed with British troops. From this came the American Revolution.

Just 13 months later, the United States signed the Declaration of Independence proclaiming freedom from the British.

The war continued, from 1775. to 1783. with more than 50,000 casualties on the US side alone. The US did not fight the war alone, it had the help of Spain, France, and the Netherlands. This war cost Americans the same as the previous, $2.4 billion.

Spanish-American War

It began in 1898 and lasted only four months, between Spain and the United States. Originally, the Spaniards were at war with Cuba, which declared independence from them in 1895.

America felt pressure to enter the war on Cuba’s side, culminating when the USS Maine exploded in a port outside Havana, and the United States decided to declare war on Spain.

But the war was not limited to the Caribbean. There was also a Pacific theater encompassing the Philippines and Guam.

So after the victory, they gained Puerto Rico, the Philippines, and Guam. The war cost the United States a total of $9 billion.

The Civil War

Slavery was one of the major causes of the American Civil War. On the one hand, there was the Union of the North, which was against slavery and elected President Abraham Lincoln at the head of the state.

Lincoln wanted to end slavery, causing the Southern Confederacy to secede from the US, creating the Confederation of States, a group of slave states that shared a common interest in maintaining slavery.

The war broke out in 1861 and lasted until 1865, costing the United States and the Confederacy more than 80 billion. It also resulted in the death of 750,000 troops.

The Gulf War

The Persian Gulf War had a short struggle but a big price.

The war began in August 1990 with Operation Desert Shield. This operation was a build-up to the war.

The US, along with coalition states, has brought troops and supplies to the region for battle.

The war began only in January 1991 with an operation known as the Desert Storm.

Over 34 countries have become involved in the war that began over Iraq’s attack on Kuwait and the annexation of the country.

The fight lasted only 42 days and ended in February 1991. The Gulf War cost the United States $102 billion.

The First World War

World War I is the fifth most expensive war in the United States. The war began in Germany in 1914, and the United States did not join until 1917.

Although the war ended just 18 months later, the US spent $334 billion on it.

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The Korean War

Led on the Korean peninsula between North Korea, supported by the Soviet Union and South Korea, supported by the United States.

North Korea invaded South Korea in 1950 in an attempt to become one country again.

The splitting of Korea came after World War II when Japan renounced the northern part in favor of the Soviet Union.

The US invaded South Korea at almost the same time, leading to a stalemate in 1950. The war technically never ended: it was concluded by a truce agreement and the two countries have since been technically at war. The US spent a total of $341 billion on the Korean War.

The Vietnam War

The Vietnam War began when the communist north invaded the south. Similar to the Korean War, the North was supported by the Soviet Union and China, and the South by the United States.

This time, things were different because the US was unable to help South Vietnam win and the country fell along with the fall of Saigon in 1975. Cost to the US? $738 billion.

The war on terrorism

Costing at least $ 1.6 trillion (2010 estimate), the war on terrorism began after the September 11, 2001, terrorist attack. The war has changed over the years based on who the United States fought for, as well as where the fighting raged.

It began in the fall of 2001 when the United States sought after Osama bin Laden, then later moved to Iraq where US troops overthrew Saddam Hussein.

The war is not over yet. The US withdrew troops from the area during Operation New Dawn in 2010, but has since been returned to the region.

World War II

The most expensive war waged by the United States was World War II. The country suffered not only a great loss of money but also troops.

More than $4 trillion was spent in the war, and more than 400,000 soldiers were killed.

The United States became involved in the war after Japan invaded the port of Perl Harbor, and the war ended in 1945.

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