It wasn't exactly the first half Indiana coach Kevin Wilson had hoped for.
After an impressive win in last week's opener, the Hoosiers fell behind Navy early and trail the Midshipmen 24-14 at halftime.
The Hoosiers, who have been unable to stop Navy's unique triple-option attack, fell behind 17-0 after a quarter of play. But Indiana answered with two scoring drives quarterbacked by Nate Sudfeld, who replaced starter Tre Roberson after two drives.
Sudfeld was 12-of-16 for 160 yards and two touchdowns in the half. He did throw an interception in the red zone.
Navy had 255 yards rushing in the first two quarters and 326 total yards.
Navy will get the ball first in the second half.