Mezue ahịrịokwu na-esonụ: Mgbe ọ bịarutere Cairo, Dempsey chọtara ụlọ ọrụ ndị agha ya na nchekwa n'ihi na ogologo ụzọ nkwukọrịta nke ndị agha nke asatọ nwere ike ịkwado ndị agha abụọ (Horrock's X Corps na Lieutenant-General Oliver Leese's XXX Corps). N'ihi ya, e were ya n'ọrụ n'ịhazi usoro ihe omume ahụ.
Ndị Allied wakporo Sicily. Ọ bụ ndị Algiers a maara dị ka Force 141 mepụtara atụmatụ ahụ dum, n'okpuru Major-General Charles Gairdner. Dempsey weghaara ọrụ nke onye isi ndị ọrụ nke Force 545, ndị ọrụ na-ahụ maka ịhazi akụkụ nke ndị agha Britain nke asatọ na ọrụ ahụ, ruo mgbe Major General Francis de Guingand, onye isi ndị ọrụ nke asatọ, nwere ike ịzọpụta iji weghara. Dempsey enweghị mmasị na atụmatụ ahụ, nke gụnyere ọdịda dị iche iche, gbasasịa. Ọ kpọgara Montgomery ihe ndị ahụ na 13 Machị 1943, wee gaa Gairdner ụbọchị ise ka nke ahụ gasịrị. De Guingand weghaara na 17 Eprel, na-enyere Dempsey aka ịlaghachi na iwu nke XIII Corps. Ya na Dempsey kwurịtara atụmatụ ahụ, ma kwadebe ekele maka Montgomery. Montgomery zigara General Harold Alexander, onye isi ndị agha nke iri na ise, na 24 Eprel. Mgbe arụmụka ụfọdụ gasịrị, Onye isi ndị agha kachasị elu, General Dwight D. Eisenhower nabatara atụmatụ Montgomery e degharịrị edegharị na Mee 3.