What tactic did ulysses s. grant use successfully against the confederate at petersburg?

Ulysses S. Grant planned and successfully executed a siege attack against the Confederate's army at Petersburg. In the event known as "The Battle of the Crater" as part of the American Civil War, the Union Army of the Potomac, defeated the Confederates under the direct supervision of the general-in-chief, Lt. Gen. Ulysses S. Grant.

b. the 200th birthday of the united states

as general terms,  indian territory,  the indian territories, or  indian country  describe an evolving land area set aside by the  united states government  for the relocation of  native americans  who held  aboriginal title  to their land. in general, the tribes ceded land they occupied in exchange for  land grants  in 1803. the concept of an indian territory was an outcome of the 18th- and 19th-century policy of  indian removal. after the  civil war(1861–1865), the policy of the government was one of  assimilation.