Which role does the Army have as part of the joint forces?

The role of the Army as part of the joint forces emphasizes the "Prevent" function. In the context of joint operations, the Army plays a crucial role in deterrence aimed at preventing conflicts through readiness and presence. This is achieved by maintaining a credible force that can influence the actions of potential adversaries and reassure allies. The Army's capabilities, such as ground maneuvers, logistics, and intelligence gathering, contribute significantly to a joint force's ability to deter aggression before it escalates into armed conflict.

In contrast, the other options focus on different facets of military operations but do not embody the specific proactive stance of prevention. For instance, while securing involves protecting assets and areas, the act of preventing encompasses a broader strategy aimed at using military readiness as a means to avoid the onset of hostilities altogether. Similarly, convening often refers to organizing operations or meetings, which is less about the proactive stance of maintaining peace. Supporting typically implies assisting or enabling other forces rather than taking the lead in discreetly deterring threats.

Thus, the Army's primary role functions to prevent potential conflicts within the framework of joint operations, reinforcing stability and security at strategic levels.