We caught up with the first-year professional ahead of this weekend's World Cross Country Championships.
The 18-year-old has dominated the indoor track this season.
Britton won the European Cross-Country Championships the last two years.
Imane Merga and Tirunesh Dibaba headline the roster.
The 2012 Olympian was the runner-up at the USA Cross Country Championships.
The most-important cross-country race in the world kicks off on March 24.
The East African nation selected its runners for the World Cross-Country Championships on Saturday.
The race takes place tomorrow in Nairobi.
They are choosing instead to win money on the roads.
Charles Ndirangu and Rosemary Wanjiru won the men's and women's races.