In the early stages of the Liberation War, facing challenges such as a large number of new recruits, significant ideological fluctuations, and weak technical foundations, Wang Keqin, the squad leader of the Machine Gun Squad of the 6th Column of the Jin Ji Lu Yu Field Army, was inspired by the widespread establishment of agricultural production mutual aid groups in the liberated areas at that time. He creatively carried out ideological, technical, and life mutual aid in the squad, greatly enhancing the combat effectiveness of the entire class. In the 1946 Battle of Xuzhuang, facing the fierce attack of elite troops, Wang Keqin led the whole class to fight fiercely against the enemy for a day, repelling several enemy attacks and annihilating a large number of enemies. The whole class suffered no casualties. After the war, Wang Keqin's class was rated as a model class. In December of the same year, the "Three Great Mutual Aid" experience was praised by the Liberation Daily as a "new glorious example". The whole army has launched a wave of learning from Wang Keqin's movement and carried out various forms of the "Three Great Mutual Aid" movement. This innovative measure provided important support for achieving victory in the war at that time, and also provided profound inspiration for enhancing combat effectiveness in the new era. Mutual assistance in ideology solidifies loyalty and belief. In the practice of Wang Keqin's movement, ideological mutual assistance was regarded as the soul project of the "Three Great Mutual Aid". Through organizing heart to heart talks, mutual learning, and joint analysis of ideological confusion among officers and soldiers, the party's purpose and revolutionary ideals were transformed into value pursuits that officers and soldiers consciously recognized. This mutual aid model of "teaching soldiers and learning from soldiers" not only breaks down the stubborn problem of "opposition between officers and soldiers" in the old army, but also allows the belief of "obeying the Party's command" to take root and sprout in mutual aid, consolidating a strong fighting force of unity and life and death. Ideals and beliefs are the spiritual backbone of soldiers, and the fundamental basis for consolidating military morale and serving as the backbone. In the new era and new journey, forging the foundation of faith for officers and soldiers is not only the core requirement for political military building, but also the ideological prerequisite for forging a strong force capable of fighting and winning battles. In the face of the new features and changes in the thinking of officers and soldiers, the fine tradition of ideological mutual assistance should be deeply rooted in the hearts of officers and soldiers, giving full play to the role of bridge and link of ideological mutual assistance, guiding officers and soldiers to take the initiative to dispel doubts, deepen ideological identity, and inherit the red gene through flexible ways such as "mutual learning, mutual evaluation, mutual help", "one person speaking, public discussion", and so on. Efforts should be made to promote the Party's innovative theory to go deep into practice, into the mind, and into the action consciousness of officers and soldiers, so that officers and soldiers can feel the mission value in the task practice, build the ideological foundation of absolute loyalty, and transform the political enthusiasm for loyalty to the Party into a strong driving force for training, preparing for war, and determined to win, and earnestly perform the Party and The new era tasks entrusted by the people. Technical mutual assistance forges the ability to win. In the practice of Wang Keqin's movement, the "technical mutual assistance" of "old leading new, strong leading weak" is frequently carried out. Combat backbones and new recruits pair up to learn from each other, veterans teach each other, and new recruits humbly seek advice. Through joint research and training, skills are improved and closely coordinated. Through mutual examination and evaluation, understanding and skills are deepened and honed. This mutual aid model of "leading training through battle and promoting war through training" significantly enhances the core combat capabilities such as shooting skills and tactical coordination of the entire class, forming a technology sharing ecosystem of "one person proficient, all members benefiting". The key to victory lies in the foundation of skills. In informationized and intelligent warfare, the technical literacy of officers and soldiers is directly related to the release of combat effectiveness. Technical mutual assistance is not only an accelerator for generating combat power, but also an important way to forge composite combat talents with "one specialty and multiple abilities". To promote military training and preparation in the new era, we should continue this fine tradition and integrate technical mutual assistance into intelligent and systematic military training practices at a deeper level. By relying on new training methods, we aim to establish an effective link for the generation of technical mutual assistance capabilities, break down professional and branch barriers, expand the dimensions of officers and soldiers' abilities through joint training and cross branch exchanges, integrate the essence of technical mutual assistance into practical training scenarios, widely carry out specialized teaching, official teaching, and military teaching, enhance the level of combat technology, and forge a steel combat collective of "mutual education and mutual assistance in peacetime and mutual support in wartime", continuously quenching and upgrading the ability to win battles through technology sharing. Mutual assistance in daily life consolidates the morale of the military. The essence of leading troops lies in leading the "heart". The cohesion of an army stems not only from a common ideal and belief, but also from the deep bond of blood and flesh between officers and soldiers. During the Wang Keqin Movement, mutual assistance in daily life demonstrated a strong aggregation effect. In the arduous combat environment, the vast number of officers and soldiers supported each other in sickness and injury, complemented each other in clothing, and shared food when food was scarce... They helped each other overcome difficulties, established unbreakable trust in daily hardships, closely linked personal fate with collective honor and disgrace, and greatly strengthened the cohesion and combat effectiveness of the troops. Winning the hearts of soldiers is the key to better taking the initiative in military construction and inspiring officers and soldiers to unite and strive. In the new era of military training and preparation, it is necessary to innovate and practice life mutual assistance while inheriting tradition, and elevate life mutual assistance from material assistance to spiritual resonance and emotional connection. The key is to establish a normalized and institutionalized mutual assistance system, guiding officers and soldiers to enhance understanding and deepen friendship through comprehensive interaction in training, tasks, and daily life; Focus on building a diversified emotional communication platform to promote ideological communication and spiritual harmony; Strengthen humanistic care, respect individual needs, effectively solve practical difficulties, and let every officer and soldier feel the warmth of the organization and the care of comrades. Internalize mutual assistance in daily life as a conscious action and emotional bond between officers and soldiers, and unite the revolutionary friendship of sharing joys and sorrows, life and death with officers and soldiers. (New Society)