Make Japan surrender unconditionally.
Also that it would cost less American lives.
Those who supported the use of the atomic bomb believed that Japan would surrender after a large scale attack. They also believed that it would be better than an American invasion as it would result in less American casualties.
Hope this helps!
Comparing source from other established sources from that time period
Answer:
He wanted to keep the Army of Northern Virginia from invading the North again
Explanation:
The Rebel commander's grand objective was to hold the line of the Rapidan, and he failed; Grant's goal was to negate Lee's army as an effective fighting force, and in that he largely succeeded. By the end of the campaign, Grant had pinned Lee into defensive earthworks around Richmond and Petersburg.
The Union strategy to win the war did not emerge all at once. By 1863, however, the Northern military plan consisted of five major goals: Fully blockade all Southern coasts. This strategy, known as the Anaconda Plan, would eliminate the possibility of Confederate help from abroad.
The Anaconda Plan is the name applied to an outline strategy for suppressing the Confederacy at the beginning of the American Civil War. Proposed by General-in-Chief Winfield Scott, the plan emphasized a Union blockade of the Southern ports, and called for an advance down the Mississippi River to cut the South in two.
