WThe Finnish 27th Jäger Battalion was an elite light infantry unit in the German Army from 1915–1918 which consisted mainly of volunteers of the Finnish Jäger troops.
WArchipelago Sea Naval Command was a Finnish Navy unit headquartered in Pansio, Turku. Its main operating area was the Archipelago Sea. Archipelago Sea Naval Command was formed in 1998 by combining the Archipelago Sea Fleet and Turku Coastal Regiment. The command was wound down at the end of 2014 and its constituent units were moved to a new command, the Coastal Fleet, which contains all vessels of the Navy.
WThe Coastal Fleet of the Finnish Navy is the main naval fleet in the Finnish Navy. It is responsible for the territorial integrity of Finland and its territorial waters. Almost all of Finland's naval vessels are part of the Coastal Fleet.
WThe Finnish Coastal Jaegers are the amphibious arm of the Finnish Navy. The unit consists of both regulars and conscripts, predominantly Swedish-speaking, and is located at Nyland Brigade in Dragsvik, near Ekenäs.
WThe Guard Jaeger Regiment is a Finnish Army unit located in Santahamina, an island district of Helsinki. The regiment trains Guard jaegers for fighting military operations in urban terrain (MOUT). The primary function of wartime units formed from the reservists trained by the regiment would be the defence of the capital Helsinki.
WGulf of Finland Naval Command was a Finnish Navy unit headquartered in Upinniemi, Kirkkonummi.
WHäme Regiment, was a unit of the Finnish Army located in Lahti. The regiment's main duty was to train conscripts and the personnel of the Finnish Defence Forces and the Finnish Frontier Guard.
WThe Pori Brigade, based in Huovinrinne, Säkylä, is a Finnish Army unit, directly under the Army headquarters. It comprises six battalion-level units and also trains soldiers for the Finnish Rapid Deployment Force.
WThe Reserve Officer School, located in Hamina, Finland, near the southeastern border, is responsible for the training of most Finnish reserve officers.
WSissi is a Finnish term for light infantry which conducts reconnaissance, sabotage and guerrilla warfare operations behind enemy lines. The word sissi, first attested in the modern meaning "patrolman, partisan, spy" in 1787, comes to Finnish from Slavic and refers either to a forest bandit or his yew bow.
WTerritorial Forces, are regional forces of Finnish Defence Forces (FDF) composed of volunteer reservists who have signed a contract which obliges them to do certain tasks during a crisis. The FDF works with and supervises the National Defence Training Association of Finland in the training of troops. Territorial Forces are composed of Territorial Companies, each of which is under command of military province of their area, in total there are 28 companies. Sometimes the name is rendered as local defence units or volunteer reserve units.
WThe Utti Jaeger Regiment is the Finnish Army training and development centre for special forces and helicopter operations in charge of the Army Special Forces Unit and the Special Forces Qualification Course.