Interservice rivalries are often played out at divisional or regimental level or between special forces that are part of different services. The rivalry between special-forces units led to the creation of United Kingdom Special Forces in the United Kingdom, and SOCOM in the United States to put them all under a unified command, putting an end to the "rice-bowl" doctrine which created absurd situations in Iran, Grenada and Panama in the 1980s. In the United Kingdom it has put an end to members of the Special Boat Service being recruited solely from the Royal Marines, and it is now a tri-service branch.