International Artillery Websites

France

The French Army Artillery: https://www.defense.gouv.fr/fre/terre/equipements/materiels-specifiques/artillerie  

61e régiment d’artillerie: https://www.defense.gouv.fr/terre/l-armee-de-terre/le-niveau-divisionnaire/commandement-du-renseignement/61e-regiment-d-artillerie  

United Kingdom

The Royal Artillery: https://www.army.mod.uk/who-we-are/corps-regiments-and-units/royal-artillery/

United States

The United States Army Field Artillery School: http://sill-www.army.mil/USAFAS/

The United States Army Air Defense Artillery School: http://sill-www.army.mil/ADASchool/