Mezue ahịrịokwu na-esonụ: Ọtụtụ ndị na-egwupụta akụ̀ ndị dị n'ime ala sonyeere CPGB n'ihi itinye aka nke otu ahụ na
Ọgbaghara Ukwu nke 1926 UK. N'afọ 1930, CPGB guzobere "Daily Worker" ("Morning Star"), nke gabigara pati ahụ ma bụrụ ugbu a akwụkwọ akụkọ mmekọrịta ọha na eze kachasị ukwuu na nke kachasị ogologo na akụkọ ntolite Britain. N'afọ 1936, ọtụtụ ndị otu pati ahụ nọ n'agha nke Cable Street, na-enyere aka ịhazi nguzogide megide British Union of Fascists. N'oge Spanish Civil War, CPGB na USSR rụkọrọ ọrụ iji mepụta International Brigades, na-ewe ihe karịrị ọkara nke ndị òtù 2,500 nke British Battalion, nke onye na-akwado òtù Bill Alexander mechara duzie. N'oge Agha Ụwa nke Abụọ, ọtụtụ ndị ntorobịa CPGB ndị ntorobịa nke onye ntorobịa bụ Norman Le Brocq duziri guzobere ma duzie nguzogide megide ndị German na-arụ ọrụ na Jersey, na-eke Jersey Democratic Movement na mkpụrụ ndụ nguzogide dị iche iche. Ndị na-eduzi ndị na-eme ihe ike na CPGB tinyere aka na ngagharị iwe maka ịnweta ọha na eze na ebe mgbaba bọmbụ, na-ahazi mwepụ nke ụmụaka nde 3 gaa n'ime obodo, ma tinye aka na mkparịta ụka post-agha banyere mgbanwe agụmakwụkwọ na okike nke British National Health Service (NHS). Mgbe mmeri ndị otu jikọrọ aka meriri ndị Nazi na 1945, ndị otu CPGB fọrọ nke nta ka ọ bụrụ okpukpu atọ mgbe njedebe nke WWII, na-eru elu nke ewu ewu ya.