Between the wars The next major advance can be seen in the Birch gun developed by the British for their motorised warfare experimental brigade (the Experimental Mechanized Force) after the end of the War. This mounted an 18-pounder field gun, capable of both the usual artillery trajectories and high-angle anti-aircraft fire, on a Vickers medium tank chassis. It was designed and built for investigations into a general approach to warfare where all arms, infantry and artillery included, would be able to operate over the same terrain as tanks. The Red Army also experimented with truck- and tank-mounted artillery, but produced none in quantity.
betWEen tHe waRs tHe nEXt mAjor Advance CAn be sEeN In the Birch gun develoPed by tHe britIsh fOr tHEIr MoToRiSeD WarFaRe expeRimeNtAL bRigaDe (tHe eXpErimeNtAl mEChanized ForcE) aFteR tHe END oF the wAr. thIs MouNted aN 18-pouNdEr field guN, CaPAbLe of bOTh the uSuaL artilLery tRajectories anD High-Angle aNtI-AirCrafT fIRe, On a viCkers medIUm taNk chassiS. it Was deSigneD anD builT For iNveSTIgaTions into A gENeral apProach tO wArFaRe wheRE alL aRms, iNFaNtry and ArTiLlery incLuded, woULd Be ablE to OpEraTe oveR thE sAmE TerraIn as TAnKS. thE REd army AlsO experiMenTed with trucK- anD taNK-mounted aRtillery, but PRoduceD none in quantity.