Large-calibre artillery - Wikiwand

The formal definition of large-calibre artillery used by the United Nations Register of Conventional Arms is "guns, howitzers, artillery pieces, combining the characteristics of a gun, howitzer, mortar, or multiple-launch rocket system, capable of engaging surface targets by delivering primarily indirect fire, with a calibre of 75 millimetres and above". This definition, shared by the Arms Trade Treaty and the Treaty on Conventional Armed Forces in Europe, is updated from an earlier definition in United Nations General Assembly Resolution 46/36L, which set a threshold of 100mm. Several grammatical changes were made to that latter in 1992 and the threshold was lowered in 2003 to yield the current definition, as endorsed by UN General Assembly Resolution 58/54.

November, 2015, Thai Military and Asian Region

The Model 1841 Field Gun - Military Trader/Vehicles

Canon de 12 Gribeauval - Wikipedia

What is the highest caliber artillery/cannon that is still in service? - Quora

Schwerer Gustav - Wikiwand

UK to give Ukraine more than 20 M109 self-propelled guns : r/ukraine

Field gun - Wikiwand

152 mm SpGH DANA - Wikipedia

WW2 Italian SPG Prototypes Archives - Tank Encyclopedia

What is the highest caliber artillery/cannon that is still in service? - Quora

Little David - Wikiwand

Pinterest

Artillery - Wikiwand

Large calibre artillery cannon in firing position Stock Photo - Alamy

Caliber (artillery) - Wikipedia