Abstract
The struggle to refute wrong and hostile views and maintain political, ideological and actional unity within the Party has been fierce since the doctrine of socialism and the Communist Party was formed. K.Marx, F.Engels and V.I.Lenin fought uncompromisingly against wrong and hostile views. Our Party and Ho Chi Minh clearly identified requirements in each historical period and vigorously fought on the ideological and theoretical front. This article clarifies the process by which Marxist - Leninist theorists and our Party have fought to protect the proletarian ideology, thereby applying it to the present material reality, and proposes key tasks to focus on implementing. This article is the result of research from Project KX.04.33/21-25.