Group 1 - The necessity of establishing a distinct political party for the proletariat was emphasized by Marx and Engels, highlighting the urgency of this need in the face of pressing circumstances [1] - The reorganization of the Justus League into the Communist League marked the formation of the world's first proletarian party, with a focus on strengthening the connection between local branches and the central committee [1][2] - Marx and Engels stressed the importance of a well-organized and unified proletarian party to ensure effective action and maintain authority, particularly after the failures observed in the Paris Commune [2][3] Group 2 - The establishment of the International Workers' Association's organizational structure aimed to unify all workers' party organizations under a common leadership, promoting a strong and cohesive organization [3] - Lenin's emphasis on a unified and disciplined party structure was crucial for the success of the Russian Social Democratic Labor Party, highlighting the need for a centralized system to maintain unity and effective action [3][4] - The early Chinese Communist Party was characterized by clear objectives and a tight organizational structure, with a focus on political unity and adherence to central leadership [4][5] Group 3 - Xi Jinping's call for strengthening party organization aims to ensure comprehensive leadership and effective governance, emphasizing the role of party branches as strongholds for promoting party policies and mobilizing the masses [5] - The enhancement of political and organizational functions within party structures is seen as essential for maintaining the party's vitality and combat effectiveness [5]