The special forces of the Finnish Defense Forces include reserve units. The FINSOF reserve personnel regularly develop and maintain their military skills. FINSOF reserve units can be promptly deployed to supplement the capability of active special forces of Finland. In this video the reserve members of the Utti Iceberg Regiment are testing their readiness to fight in built up areas and in close quarter battle (CQB).
Video published on August 30, 2019 by the Finnish Defence Forces, 2 minutes.
https://www.youtube.com/watch?time_continue=1&v=Vcn8sSK6ybY