Yonderian Defence Force

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Yonderian Defence Force
Burgoignesc: Force de Défense Yonderre
Gothic: Yondersche Wehrkraft
Shield of Joanus.png
MottoPro Deo et Patria Semper Vigilo(Ever Vigilant for God and People)
Current formDefence Agreement of 2000
Service branchesShield of Joanus.png Army

Army of the Air.png Army of the Air

Marine Yonderre.png Marine Yonderre
HeadquartersCollinebourg, Yonderre
Grand DukeAuguste IV de Somua
Chief of DefenceGeneral of the Army Phillip de Stonne
Military age18
ConscriptionYes, for males
Active personnel365,042 military & 65,274 civilian (2008)
Reserve personnel3,456,205
Domestic suppliersAMY
Foreign suppliers Burgundie
Related articles
HistoryMilitary history of Yonderre
RanksRanks and insignia of the Yonderian Defence Force

The Yonderian Defence Force (Burgoignesc: Force de Défense Yonderre, Gothic: Yondersche Wehrkraft), is the armed force of the Serene Grand Duchy Yonderre. Founded initially as a ground force in 1644 by Grand Duke Auguste II de Houicourt, the Yonderian Defence Force also operates the Army of the Air and Marine Yonderre.

The Yonderian Army consists of ten standing divisions divided into two corps, the Grand Ducal Guard Corps and the Second Corps of the Army. In adition, the Yonderian Armed Forces also consists of a further ten skeletonized divisions, brigade-sized units intended to be mobilized and combat ready within three days in case of national emergency. Yonderre's official policy states that a wartime military strength of 580,000 personnel constitutes a sufficient deterrent to exterior aggression. The army consists of a highly mobile field army backed up by local defence units. The army defends the national territory and its military strategy employs the use of the heavily forested terrain and numerous lakes to wear down an aggressor, instead of attempting to hold the attacking army on the frontier.

The Army of the Air operates some 275 fixed-wing combat aircraft divided into 21 wings. The Army of the Air also operates an arsenal of combat helicopters as well as search and rescue helicopters. The Marine Yonderre is the Navy of Yonderre and operates two Sentinelle-class helicopter carriers, four Vigilante-class frigates, six Infatigable-class corvettes as well as a wide array of smaller support and auxillary ships.

The Yonderian Defence Force is committed to peacekeeping operations worldwide and has been in the Pukhtun Sea as part of Operation Khyzer Rhykh since 2010. The Yonderian Defence Force has been an active party in the Deluge since 2016, the Army of the Air having led a succesful air campaign against Algoquonan militias in Operation Mission Shield and all the branches having fought as part of the later Operation Western Blizzard. The Yonderian Defence Force was also directly involved militarily in Cetsencalia and Quetzenkel during the Final War of the Deluge, fighting on land, air and sea.


The Yonderian Defence Force was formed in 1644 by Grand Duke Auguste II de Houicourt in the wake of the Yonderian Peasants' War. The Knights of the Realm, the pseudo-standing army that had preceeded the Yonderian Defence Force, had proven itself incapable of dealing with an interior revolt and had even provided the rebel force with the majority of its leadership. The formation of the Defence Force, known at the time as the Grand Ducal Army, was also de Houicourt's response to the raising of local militias, de Houicourt seeking to centralize military power in the highly federalized Yonderre.

Command structure

Structure of the National Command Authority

The Yonderian Defence Force is under the command of the Chief of the Defence Force, who is directly subordinate to the Grand Duke in matters related to the military command. Decisions concerning military orders are made by the Grand Duke in consultation with the Chief of the Armed Forces and the Defence Minister.


Peacekeeping operations

With the Defence Agreement of 2020, Yonderre changed its geopolitical stance from one of general neutrality (with the notable exception of its participation in LOTA) to one of international peacekeeping. This first manifested itself by Yonderre's participation in Operation Khyzer Rhykh starting in 2010 in which three Infatigable-class corvettes partook in counter-piracy opeations. Since 2016 Yonderre has partaken in the Deluge, lending aid to the Armed Forces of Urcea in Operation Mission Shield and being the leading actor in Operation Western Blizzard.


All numbers are approximate and as per the Yonderian Defence Force's own statistics

Equipment Numbers Notes
Main Battle Tanks 2150 1300 in storage
Infantry Fighting Vehicles 6000 2000 in storage
Utility Vehicles 1800 600 in storage
Trucks TBD
Fighter Aircraft 108 Pending introduction of FS-18
Bomber Aircraft 167 All tactical or strike bombers
Attack Helicopters TBD


The Army of the Air has no strategic bombers as it is entirely centred around territorial defence and tactical air support of ground forces.