The document discusses how several historical battles were affected by cold weather conditions during the Little Ice Age period: - The Spanish Armada in 1588 was forced to retreat north after battling the British, and over 21,000 troops were lost due to freezing temperatures. - During the American Revolutionary War in 1776, George Washington's troops battled harsh cold and ice chunks in the Delaware River on their march to victory in Trenton. - Napoleon's retreat from Russia in 1812 was a disaster as over 36,000 men died from freezing or starvation in the extreme cold. - The Battle of New Orleans in 1815 at the end of the War of 1812 took place during a year without a summer