A corvette from the Fourth Naval Warfare Flotilla laid mines, serviced by personnel from the Naval base. Mine-laying was conducted in the southern archipelago of Stockholm in order to protect part of the coast line. Simultaneously, a unit from the Air Defence Regiment, Lv 6, provided area protection by means of air defence missile system 97 and its successor, system 98. On the ground, Home Guard units from the Central Military Region and regional high readiness units provided ground protection. Chief of Joint Operations Michael Claesson, who visited the participating units, explains why the readiness check was conducted:
“The purpose of the SNAPEX is to strengthen the defence of Sweden and this is part of the Swedish Armed Forces’ ambition to enhance operational capability. This type of checks is vital to ensure that our units are capable of solving the tasks they are assigned in times of crisis and war.”