Economic sanctions issued by British Crown along with British Order of 1806 and the Chesapeake incident of 1807 led to the war of 1812.
Second American War of Independence was fought from June 1812 and continued till February 1815 between United Kingdom and America along with their allies. One of the impending cause or reasons for War of 1812 was the economic sanctions issued by the British Crown and the French empire against the America
These sanctions which were the part of Napoleonic Wars was the immediate cause whereas the circumstances started building up from the year 1806 when the American trade was crippled by the British orders in council issues in the year 1806. Further the Chesapeake incident that happened in the year 1807 also greatly contributed in the cause of this war as many American vessels were seized and impressed in the naval force by British Government.