Psychology Suggests the U.S. Army Needs to Do More To Battle A New Enemy (Not Russia or China): Loneliness

February 27, 2026 - 23:59

A recent study highlights a growing, non-traditional adversary within the U.S. military ranks: pervasive loneliness. While the Army possesses deep institutional knowledge for building unit cohesion in combat settings, experts argue that more targeted tools are required to combat the internal isolation that can erode a soldier's mental fortitude.

Research published in the Harvard Business Review emphasized the need to strengthen "social resilience" alongside physical and tactical training. The study identified loneliness as a distinct condition separate from mere lack of companionship, one that directly impacts overall well-being and operational readiness.

In response, psychologists developed and tested a series of practical "social fitness" exercises designed for military personnel. These interventions ranged from small, personal acts—like performing a deliberate favor for a teammate—to more structured, group-based problem-solving tasks. Early results from these programs were promising, indicating measurable reductions in feelings of loneliness and corresponding improvements in reported well-being among participants.

This shift in focus underscores a broader understanding that a soldier's psychological health is a core component of national defense. By proactively addressing the silent epidemic of loneliness, military leaders aim to build not only stronger teams, but also more resilient individuals capable of withstanding the unique stresses of service.