What were the major causes and results of the War of 1812?

Causes: The immediate causes of the War of 1812 were a series of economic sanctions taken by the British and French against the US as part of the Napoleonic Wars and American outrage at the British practice of impressment, especially after the Chesapeake incident of 1807.

Effects: Economic impact

Although during the War of 1812 the United States' economy was severely damaged by the British blockade, the aftermath gave a dramatic boost to the manufacturing capabilities of the United States.

I hope this is what you are looking for. Just let me know if you need more! : D