NATO has two Immediate Reaction Forces: the Standing NATO Maritime Groups composed of the SNMG1 and the SNMG2; and the Standing NATO Maritime Mine Countermeasure Groups (SNMCMG1 and SNMCMG2).
The Standing NATO Mine Countermeasures Groups SNMCMG1 and SNMCMG2 are multinational forces that primarily engage in search and explosive ordnance disposal operations.
Both SNMCMG groups are key assets in the NATO Response Force (NRF) and are able to fulfil a wide range of roles from humanitarian tasks to operations. They can deploy at short notice and are often the first assets to enter an operational theatre.