The France National Rugby Team Men, commonly known as "Les Bleus", is France’s senior men's national rugby union side governed by the French Rugby Federation (Fédération Française de Rugby). Established in the early 20th century, the team is a leading force in international rugby—regularly competing in the annual Six Nations Championship, the quadrennial Rugby World Cup and other test series—and plays its principal home fixtures at the Stade de France and other major French venues such as Matmut Atlantique. The side fields the traditional 15-a-side format and regularly tours and hosts matches at prominent international stadiums including Murrayfield and the Principality Stadium.