Who organises the six nations?

The Six Nations Championship is organized by the six participating rugby union unions: the Rugby Football Union (RFU) for England, the Scottish Rugby Union (SRU) for Scotland, the Welsh Rugby Union (WRU) for Wales, the Irish Rugby Football Union (IRFU) for Ireland, the Italian Rugby Federation (FIR) for Italy, and the French Rugby Federation (FFR) for France. The tournament typically takes place annually and is governed by the rules and regulations set forth by World Rugby. Each union is responsible for its own team's participation and logistics.