Wars involving Mongolia

World War II, or the Second World War, was a global conflict between two coalitions: the Allies and the Axis powers. Nearly all of the world's countries participated. Tanks and aircraft played major roles, the latter enabling the strategic bombing of cities and delivery of the only nuclear weapons used in war. World War II was the deadliest conflict in history, causing the death of 60 to 75 million people. Millions died as a result of massacres, starvation, disease, and genocides, including the Holocaust. After the Allied victory, Germany, Austria, Japan, and Korea were occupied, and German and Japanese leaders were tried for war crimes.

The Iraq War, also referred to as the Second Gulf War, was a protracted armed conflict in Iraq from 2003 to 2011. It began with the invasion by a United States–led coalition, which resulted in the overthrow of the Ba'athist government of Saddam Hussein. During the US occupation of Iraq, the conflict persisted as an insurgency that arose against coalition forces and the newly established Iraqi government. US forces were officially withdrawn in 2011. In 2014, the US became re-engaged in Iraq, leading a new coalition under Combined Joint Task Force – Operation Inherent Resolve, as the conflict evolved into the ongoing Islamic State insurgency.

armed conflict between NATO countries and Afghanistan from 2001 to 2021

1939 Soviet–Japanese battle in Mongolia

invasion of the Japanese puppet state of Manchukuo by the Soviet Union near the end of WWII

armed conflict in the 1930s between the Soviets, Mongolians, and Japanese

1918 war

conflicts between the Han Empire and the Xiongnu (133 BCE – 89 CE)

series of conflicts between Dzungar Khanate and the Qing dynasty of China under Qianlong Emperor

military conflicts in Central Asia, 1635–1741

1921 event during the Russian Civil War

involvement of Mongolia in World War II