Dee ihe na-aga n'ihu maka paragraf a - Ka agha Polish-Soviet na-eto n'ike n'ike, na ngwụcha Eprel 1920 ndị Red Army nke ọchịchị Soviet ọhụrụ nke Russia mere ka ndị agha Polish laghachi azụ ma wakpo Poland. Mgbe nke ahụ gasịrị, Sikorski ji ihe ịga nke ọma chebe Mozyr na Kalenkowicze ruo 29 June, mana emesịa enweghị ike ijide ebe e wusiri ike Brest, ọ bụ ezie na ọ gbachitere ya ogologo oge iji nye ndị agha Polish nọ na mpaghara ahụ ohere ịlaghachi n'usoro. N'August 6 a họpụtara ya onye isi nke ndị agha nke Polish 5 nke e hiwere ọhụrụ, nke e nyere ọrụ ijide n'ihu n'ebe ugwu Modlin, n'etiti osimiri Narew na Wkra. O gosipụtara onwe ya na-achị ndị agha nke ise na Lower Vistula n'ihu n'oge Agha Warsaw. N'oge ahụ, ndị agha Soviet, bụ́ ndị na-atụ anya inwe mmeri ikpeazụ dị mfe, tụrụ ndị agha Poland n'anya ma kụrie ha. N'oge agha ahụ (mgbe ụfọdụ a na-akpọ ya "Ọrụ ebube na Vistula") Sikorski kwụsịrị ọganihu Bolshevik n'ebe ugwu nke Warsaw ma nye Piłsudski, onye isi ndị ọchịagha Polish, oge ọ chọrọ maka ịwakpo ya; malite na 15 August ndị agha ya gara nke ọma na Soviet 5th na 15th Armies. Mgbe agha nke Warsaw, site na 30 August, Sikorski nyere ndị agha nke atọ iwu. Ndị agha ya weghaara Pińsk, ma lụọ ọgụ n'oge oge ikpeazụ nke Agha Lwów na Agha Zamość, na mgbe Agha Niemen gasịrị
ọ gara n'ihu na ndị agha ya na Latvia na n'ime Belarus. Ndị Poland meriri ndị Soviet, na Polish-Soviet Treaty nke Riga (March 1921) nyere Poland nnukwu mpaghara Belarus na Ukraine (Kresy). A ma ama Sikorski ka ọ bịara mara ọha na eze Polish dị ka otu n'ime ndị dike nke agha Polish-Soviet. Ọ nọgidekwara na-ebipụta akụkọ sayensị ndị agha n'oge agha ahụ n'onwe ya. N'ihi ihe ndị siri ike Sikorski rụzuru, e buliri ya n'ọkwa onye isi ndị agha na 28 Febụwarị 1921, ma nye ya ihe nrite kachasị elu nke ndị agha Poland, iwu nke Virtuti Militari, na 15 Machị nke afọ ahụ.