习近平说，中国人民抗日战争是艰苦卓绝的伟大战争。在中国共产党倡导建立的抗日民族统一战线旗帜下，中国人民以铮铮铁骨战强敌、以血肉之躯筑长城，取得近代以来反抗外敌入侵的第一次完全胜利

Group 1 - The core viewpoint emphasizes the significance of the Chinese people's resistance during the Anti-Japanese War, highlighting it as a monumental struggle that led to a complete victory against foreign invasion in modern history [1] Group 2 - The article mentions the role of the Communist Party in advocating for the establishment of a united front against Japanese aggression, which was crucial for mobilizing the Chinese populace [1] - It describes the determination and resilience of the Chinese people, who fought against strong enemies and built a metaphorical "Great Wall" with their flesh and blood [1]