Much to the embarrassment of the president, Mary Todd Lincoln prevented Robert Lincoln from joining the Army until shortly before the war's conclusion. "We have lost one son, and his loss is as much as I can bear, without being called upon to make another sacrifice," Mary Todd Lincoln insisted to President Lincoln. President Lincoln argued "our son is not more dear to us than the sons of other people are to their mothers." However, Mary Todd Lincoln persisted by stating that she could not "bear to have Robert exposed to danger." In January 1865, the First Lady yielded and President Lincoln wrote Ulysses S. Grant, asking if Robert could be placed on his staff.