Teams compete in 4 different league systems, the biggest being the (English) Premier League. There is rivalry between the four home nations. A huge part of the rivalry was Scotland fans booing British anthem 'God Save The Queen' (during Scotland v Northern Ireland in 2008 and 2011, as well as the Lichtenstein national anthem - that has the same tune to God Save The Queen - in 2010), after a British Football Team (Team GB) was purposed of London 2012. Scotland have also destroyed Wembley, home of England, after beating them. Some Welsh teams play in England. British football is also known for hooliganism, topped of with English clubs being banned from Europe.