抗日战争时期，九一八事变后，中日民族矛盾逐渐超越国内阶级矛盾上升为主要矛盾。在日本帝国主义加紧侵略我国、民族危机空前严重的关头，党率先高举武装抗日旗帜，广泛开展抗日救亡运动，促成西安事变和平解决，对推动国共再次合作、团结抗日起了重大历史作用。七七事变后，党实行正确的抗日民族统一战线政策，坚持全面抗战路线，提出和实施持久战的战略总方针和一整套人民战争的战略战术，开辟广大敌后战场和抗日根据地，领导八路军、新四军、东北抗日联军和其他人民抗日武装英勇作战，成为全民族抗战的中流砥柱，直到取得中国人民抗日战争最后胜利。这是近代以来中国人民反抗外敌入侵第一次取得完全胜利的民族解放斗争，也是世界反法西斯战争胜利的重要组成部分。
After the September 18th Incident in 1931 during the War of Resistance against Japanese Aggression, the conflict between China and Japan gradually overtook domestic class conflict as the issue of primary importance. As Japanese imperialists intensified their aggression against China, the country was plunged into an unprecedented national crisis. The Party was the first to propose that China should fight Japanese aggression with armed resistance, and launched extensive resistance movements. It also facilitated a peaceful settlement of the Xi’an Incident, thus playing a historic role in promoting a second period of cooperation between the KMT and the CPC and the united resistance against Japanese aggression.

Following the July 7th Incident in 1937, the Party implemented the right policy on the Chinese united front against Japanese aggression, and adhered to the line of all-out resistance. It devised and executed the strategic guidelines for a protracted war as well as a whole set of strategies and tactics for a people’s war, opened up vast battlefronts behind enemy lines, and developed bases for the resistance. The Party led the Eighth Route Army, the New Fourth Army, the Northeast United Resistance Army, and other forces of the people’s armed resistance in brave fighting, and they were the pillar of the entire nation’s resistance until the Chinese people finally prevailed. This marked the first time in modern history that the Chinese people had won a complete victory against foreign aggressors in the war of national liberation, and was an important part of the global war against fascism.

解放战争时期，面对国民党反动派悍然发动的全面内战，党领导广大军民逐步由积极防御转向战略进攻，打赢辽沈、淮海、平津三大战役和渡江战役，向中南、西北、西南胜利进军，消灭国民党反动派八百万军队，推翻国民党反动政府，推翻帝国主义、封建主义、官僚资本主义三座大山。党领导的人民军队在人民支持下，以一往无前的英雄气概同穷凶极恶的敌人进行殊死斗争，为夺取新民主主义革命胜利建立了历史功勋。
During the War of Liberation, as the KMT reactionaries flagrantly launched an all-out civil war, the Party led soldiers and civilians in gradually shifting from active defense to strategic offensive. It secured victories in the Liaoxi-Shenyang, Huai-Hai, and Beiping-Tianjin campaigns as well as the Crossing-the-Yangtze Campaign, advanced triumphantly into the central-south, northwest, and southwest, and wiped out eight million KMT troops, thus overthrowing the reactionary KMT government and the three mountains of imperialism, feudalism, and bureaucrat-capitalism. With the support of the people, the Party-led people’s army demonstrated heroic mettle and unyielding resolve as they fought to the last against these fierce enemies, making a historic contribution to the victory of the new-democratic revolution.

在革命斗争中，以毛泽东同志为主要代表的中国共产党人，把马克思列宁主义基本原理同中国具体实际相结合，对经过艰苦探索、付出巨大牺牲积累的一系列独创性经验作了理论概括，开辟了农村包围城市、武装夺取政权的正确革命道路，创立了毛泽东思想，为夺取新民主主义革命胜利指明了正确方向。
In the course of the revolutionary struggle, Chinese communists, with Comrade Mao Zedong as their chief representative, adapted the basic tenets of Marxism-Leninism to China’s specific realities and developed a theoretical synthesis of China’s unique experience which came from painstaking trials and great sacrifices. They blazed the right revolutionary path of encircling cities from the countryside and seizing state power with military force. They established Mao Zedong Thought, which charted the correct course for securing victory in the new-democratic revolution.