updated 12/12/2012 AT 3:00 PM ET
•originally published 12/12/2012 AT 3:25 PM ET
The couple, who were former high-school sweethearts, are jointly petitioning for divorce, reports TMZ.
Shortly after they got married, Track, now 23, and Britta, 22, announced the arrival of their first child, a girl named Kyla Grace Palin.
Track is an Army Reservist who spent a year deployed in Iraq with a Ft. Wainwright Stryker Brigade.
At the time of his marriage it was reported that he had planned to study at the University of Alaska after the commercial fishing season.