 Ramba uchinyora ndima iyi - Munguva dzose dzehondo, kushandiswa kwezvombo zvemakemikari uye zvebiological kwakanga kwakaganhurirwa zvikuru nemativi ose ari maviri. Italy yakashandisa gasi resinapu nephosgene mukati mehondo pfupi yechipiri yeItaly neAbyssinian, Germany yakashandisa mishonga yemakemikoro yakadai seZyklon B kurwisa vaJudha, vasungwa vezvematongerwe enyika uye vamwe vanyajambwa mumisasa yokuparadza mukati meHolocaust, uye Japan yakashandisa zvombo zvemakemikoro uye zvebiological muChina. Muna 1943 ngarava yeU.S. yaitakura mutoro wakavanzika weChemical Warfare Service wegasi re mustard senzira yokuzvidzivirira yokutsiva yakanyudzwa mukurwiswa nendege muItaly, zvichikonzera kufa kwevanhu 83 uye vanenge 600 vanorapwa muchipatara vari varwi pamwe chete nenhamba huru yevanhuwo zvavo vakafa. Muchiitiko ichocho, hapana chombo chemakemikoro kana kuti chebhayoloji chakashandiswa munhandare yehondo nomurwi upi noupi mukati meHondo yeNyika II. 