M23 – A rebel group that operates in the eastern parts of the Democratic Republic of Congo. It was formed by loyalists to the Tutsi warlord Gen. Laurent Nkunda and takes its name from the date of an agreement signed on 23 March 2009 between Rwanda and DRC to cooperate on the eradication of a Hutu rebel group called the FDLR. It is widely believed that M23 are directly controlled by the Rwandan government.
M25 – A motorway that encircles Greater London. It has various cultural meanings for people in the UK, defining for many the boundary between city and countryside. It also played a huge role in 80’s rave culture as people whizzed around it on their way to parties in rural barns and warehouses. Iain Sinclair wrote a geeky book about it which was made into a movie by Channel 4.
M83 – A nice and melodic electronic band from France. They used to be pleasantly obscure but they recently composed the soundtrack for a movie called Oblivion that’s being advertised on a lot of buses at the moment so they may become famous and lose some of their exclusive charm. They are named after a spiral galaxy called Messier 83.