Re: [R] Selecting columns of a table (not consecutive) >I have a table with 10 columns and many rows. >I want to select the 3rd,4th and 10th column. >problem.
There are three Military Departments within the Department of Defense: the Department of the Army, which the United States Army is organized within. the Department of the Navy, which the United States Navy and the United States Marine Corps are organized within.
United States History. Secretaries of War. The War Department was an executive department of the United States government from 1789 to 1947, when its name was changed and it was reorganized. It was created to supervise all military functions and aspects of national defense. In 1798, Congress separated the Navy from the Army, which created a new Department of the Navy. The War Department continued to supervise the Army. Both department secretaries were answerable to the president, were members of his Cabinet, and cooperated in joint committees and conferences. Henry Knox.