STANAVFORLANT

Standing NATO Maritime Group One (SNMG1) is one of NATO's standing maritime Immediate Reaction Forces. Prior to 1 January 2005 it was known as Standing Naval Force Atlantic (STANAVFORLANT). The group was also briefly called the Standing NATO Response Force Maritime Group One.

SNMG1 consists of 4 to 6 destroyers and frigates, with the Royal Canadian Navy, the German Navy, the Royal Netherlands Navy, and the United States Navy each contributing one ship on a permanent basis. These are joined periodically by ships from the navies of Italy, Belgium, Denmark, Norway, Poland, Portugal, and Spain. The force operates, trains and exercises as a group, providing day-to-day verification of current NATO maritime procedures, tactics and effectiveness.

Ships are usually attached to the force for up to six months, on a rotating basis. Units of one nation do not necessarily relieve ships of the same nation. The force commander and the staff are appointed for one year, with the force commander rotating among the participating nations.

As of April 14th 2017, SNMG1 consists of:

In peacetime, the force exercises primarily in the eastern Atlantic. Allied Command Operations (ACO) has operational command of the force, and the Commander Allied Maritime Component Command Northwood administers the force while in the Eastern Atlantic. ACO delegates operational control to the area commander where the force is operating.

SNMG1 is a component of the NATO Response Force (NRF).

In late November 1966, U.S. Rear Admiral Richard G. Colbert prepared a concept paper proposing a permanent Allied Command Atlantic naval contingency force based on Operation Matchmaker, an annual six-month exercising involving ships from allied navies. The proposed contingency force was approved by NATO in December 1967 and activated in January 1968 as Standing Naval Force Atlantic (STANAVFORLANT).

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Wikipedia