The Vietnam War (1955-1975) was a protracted conflict between North Vietnam (supported by the Soviet Union and China) and South Vietnam (supported by the United States and other anti-communist allies). The war had significant global implications, including the division of Vietnam, the spread of anti-war protests, and a reevaluation of U.S. foreign policy.

The Rwandan Genocide in 1994 was a horrific ethnic conflict between the Hutu majority and the Tutsi minority in Rwanda. It resulted in the mass killing of an estimated 800,000 people within a span of 100 days. The international community's failure to intervene and prevent the genocide remains a tragic chapter in modern history.

The Falklands War in 1982 was a conflict between Argentina and the United Kingdom over the disputed Falkland Islands in the South Atlantic. The war ended with a British victory and the restoration of British control over the islands, but it had lasting geopolitical consequences for the region.

The Punic Wars were a series of three wars fought between Rome and Carthage in the 3rd and 2nd centuries BCE. The most famous of these was the Second Punic War, led by the Carthaginian general Hannibal, who famously crossed the Alps with war elephants. Rome ultimately emerged victorious, expanding its influence in the Mediterranean.

The Hundred Years' War was a series of conflicts between the Kingdom of England and the Kingdom of France from 1337 to 1453. The war saw significant developments in medieval warfare, including the use of longbows. It ended with the Treaty of Paris, establishing French sovereignty and ending English claims to the French throne.

The Opium Wars were two conflicts fought between China and Great Britain in the mid-19th century. They were sparked by China's efforts to stop the illegal opium trade imposed by British merchants. The wars resulted in the Treaty of Nanking, which ceded Hong Kong to Britain and opened Chinese ports to foreign trade.

The War of 1812 was fought between the United States and the United Kingdom. It stemmed from various issues, including trade disputes, British impressment of American sailors, and Native American conflicts in the Western frontier. The war ended in 1815 with the Treaty of Ghent, maintaining pre-war borders.