Foreign Intervention

The impact of non-warring foreign intervention was greatly signifcant in the American Revolution, the War of 1812, and the Civil war. In the American Revolution, the colonies entered a battle with many shortages. They lacked unity in many areas as well as a strong and well supplied army. Although they had sentiment large enough to win the war mentally, physically, without France's great contributions of experienced army officials, supplies, and funds, Britain would not have been defeated.
Similar to the American Revolution, the War of 1812 was able to be ended with the aid of foreign intervention, only this time, the help came from Russia. Tsar Alexander I, as an attempt to save Britain's military strength for repressing Napoleon of France's devastating reign over the globe, proposed the Treaty of Ghent. In this agreement, American and Britain representatives met and decided to end fighting and to restore conquered territory. If this treaty was not proposed, Britain would have once again surely won the war, or at least have gained much territory of the United States.
In the Civil War, foreign intervention again made an appearance as an important factor. However, it was the lack of foreign aid to the South that changed the outcome of the war. The North and it's large corn and wheat supplies to Britain provided a large power over Britain which stopped European countries from interfering with the blockade of Southern ports. If the South had indeed bypassed this blockade, it would have been better supplied, better fed, and perhaps more prepared to win the war.