During the war of 1812, america's greatest success in a land battle against the british took place where? pittsburgh.

New Orleans
The battle constituted  the last battle of the war of 1812, which pitted the British against the Americans. The American small forces were able to resist British seizure of new Orleans. New Orleans was part of the Louisiana land. the British forces were forced to resist.

  the domino theory states that  if one country in a region came under the influence of communism, then the surrounding countries would follow in a  domino  effect.