European Rugby Union refers to the sport of rugby played at a club and national level across Europe. It includes various competitions, such as the European Rugby Champions Cup and the European Rugby Challenge Cup, which feature top club teams from different countries. The sport is governed by World Rugby and has a strong following in nations like England, France, and Ireland. The European Rugby Union is known for its competitive nature and passionate fan base. National teams also compete in tournaments like the Six Nations Championship, which includes teams from England, France, Italy, Ireland, Scotland, and Wales. The sport emphasizes teamwork, strategy, and physicality.