Rule of 1756

The Rule of 1756 or Rule of the War of 1756 was a policy of the Kingdom of Great Britain, and later the United Kingdom of Great Britain and Ireland that was promulgated during the Seven Years' War. It ruled that Britain would not trade with neutral nations who were also trading with the enemy. It also ruled that Britain would not open trade with any nation during wartime. The rationale behind this rule was that the neutral nation was aiding the enemy.

The rule was one of the causes of the War of 1812.