King George's War (1744-1748) is the name given to the military operations in North America that formed part of the War of the Austrian Succession (1740-1748). It was the third of the four French and Indian Wars. It took place primarily in the British provinces of New York, Massachusetts Bay, New Hampshire, and Nova Scotia. Its most significant action was an expedition organized by Massachusetts Governor William Shirley that besieged and ultimately captured the French fortress of Louisbourg, on Cape Breton Island in Nova Scotia, in 1745.
The French and Indian War (1754 to 1763) is the common American name for the war between Great Britain and France in North America. In 1756, the war erupted into the world-wide conflict known as the Seven Year War and thus came to be regarded as the North American theater of that war. In Canada, it is usually just referred to as the Seven Year War, although French Canadians often call it La guerre de la Conquete ("The War of Conquest"). In Europe, there is no specific name for the North American part of the war. The name refers to the two main enemies of the British colonists: the royal French forces and the various Native American forces allied with them, although Great Britain also had Native allies.
The American Revolutionary War (1775-1783), the American War of Independence, or simply the Revolutionary War, began as a war between the Kingdom of Great Britain and thirteen British colonies in North America, and ended in a global war between several European great powers.
The War of 1812 (1812-1815) was a military conflict fought between the forces of the United States of America and those of the British Empire. The United States declared war in 1812 for several reasons, including trade restrictions because of Britain's ongoing war with France, impressment of American merchant sailors into the Royal Navy, British support of American Indian tribes against American expansion, and over national honour after humiliations on the high seas.
The American Civil War (1861-1865) was a civil war fought in the United States of America. In response to the election of Abraham Lincoln as President of the United States, 11 southern slave states declared their secession from the United States and formed the Confederate States of America ("the Confederacy"); the other 25 states supported the federal government ("the Union"). After four years of warfare, mostly within the Southern states, the Confederacy surrendered and slavery was outlawed everywhere in the nation. Issues that led to war were partially resolved in the Reconstruction Era that followed, though others remained unresolved.
The Spanish-American War was a conflict in 1898 between Spain and the United States, effectively the result of American intervention in the ongoing Cuban War of Independence. American attacks on Spain's Pacific possessions led to involvement in the Philippine Revolution and ultimately to the Philippine-American War.