Because the War of 1812 was an attempt by the British to capture and control much of the American nation.
I hope this helps.
B. Often emphasized individual politicians with mass followings and popular nicknames
He sought to end it through Vietnamization
It was a plan of his to use the American troops to train the South Vietnamese soldiers to defend their country on their own and reduce the number of American troops. He did end American participation in the war but the results were not satisfactory since North Vietnam managed to win the war after the Americans left.