The battle of Vicksburg ( May 18 to July 4, 1683 ) was the final military action of the American Civil War. Army of Union was led by General Ulysses S. Grant. Confederate general Robert E. Lee surrendered to the Union army under General Grant.
Answer: You are General Ulysses S. Grant.
If other countries aren't willing to fight for them and they cant fight for themselves the United States probally would but no we dont have to