China and India share a 3,488-kilometer (2,167-mile) border, which is the longest disputed border in the world.

The Intifada is a series of Palestinian uprisings against Israeli occupation of the West Bank and Gaza Strip.

The Kashmir conflict is a territorial dispute between India and Pakistan over the region of Kashmir.

The Nagorno-Karabakh War is an armed conflict between Armenia and Azerbaijan over the disputed region of Nagorno-Karabakh.

The South China Sea dispute is a territorial dispute between China and several other countries in the region, including Vietnam, the Philippines, Malaysia, and Indonesia.

The Russian-Ukrainian War is an ongoing armed conflict between Russia and Ukraine that began in 2014.

The Western Sahara conflict is a territorial dispute between Morocco and the Sahrawi Arab Democratic Republic (SADR) over the region of Western Sahara.

The Eritrean-Ethiopian War was a border conflict between Ethiopia and Eritrea that lasted from 1998 to 2000.

The Abyei conflict is a territorial dispute between Sudan and South Sudan over the Abyei region.

The Mexican-American War was a war between the United States and Mexico that lasted from 1846 to 1848.

The Cyprus dispute is a territorial dispute between Cyprus and Turkey over the island of Cyprus.

The Falklands War was a war between Argentina and the United Kingdom over the Falkland Islands.

The Spratly Islands dispute is a territorial dispute between China and several other countries in the region, including Vietnam, the Philippines, Malaysia, and Taiwan.

The Korean War was a war between North Korea and South Korea that lasted from 1950 to 1953.

The Senkaku Islands dispute is a territorial dispute between China and Japan over the Senkaku Islands.