The 2015 Motocross des Nations quickly developed into a two-country battle, with France and the United States breaking away from the pack and taking the duel for the Chamberlain Cup down to the final moto of the day. While Justin Barcia was able to give Team USA its first moto win at an MXoN since 2011, it was ultimately on the strength of recently-crowned MXGP champion Romain Febvre's pair of moto wins that France was propelled to victory for a second year in a row.

The French win came on home soil, as this year's race was held in Ernée, France.

Team USA was strong throughout the day. In the first moto, Barcia grabbed the holeshot and went on to lead the entire race, while Jeremy Martin rode his 250 to a solid 5th-place finish. Cooper Webb, who raced aboard a 450, then earned the holeshot in the second moto but lost the lead to Febvre and finished in 2nd place. Martin once again placed 5th in that moto.

With the U.S. holding a slim lead heading into the final moto, it came down to Barcia and Webb vs. Febvre and Gautier Paulin. Unfortunately the American duo was unable to replicate their fast starts in the earlier races, as they both found themselves starting from outside the top ten. Barcia clawed his way up to 3rd and Webb climbed to 6th, but they fell just short of where they needed to be at the end of the moto.

Anchored by Febvre's sweep, Team France also got solid outings from Marvin Musquin (4-3) and Paulin (7-5) to secure the win by two points. France has now won two in a row at MXoN, while the U.S. is still in search of their first overall win since 2011.

Belgium, who last won the MXoN in 2013, rounded out the overall podium in third.

On an individual level, Barcia had the best overall score in the MXGP class, with Musquin and Febvre edging out Martin and Webb in the MX2 and Open classes, respectively.

Next year's Motocross des Nations will take place in Italy, then the event returns to the U.S. in 2017 with a visit to Glen Helen Raceway.