Which city did David Farragut force to surrender by entering the mouth of the Mississippi?

1. Farragut conducted two remarkable operations early in the war. 2. In the first he took a Union fleet into the mouth of the Mississippi. 3. There he forced the surrender of the largest city in the south, New Orleans. 4. In the second he passed the fortified entrance of Mobile Bay and sealed up that port. 5. Vicksburg fell later, to Grant, after a siege of six weeks. _Source: An Outline of American History (U.S. Information Agency, 1990, public domain), section BLOODY BATTLES IN EAST AND WEST_