What group of US veterans are willing to fight ISIS?

A group of U.S. veterans, often referred to as "The Veterans for Foreign Wars" (VFW) or informal networks of veteran volunteers, have expressed a willingness to assist in the fight against ISIS. Some veterans feel a sense of duty to combat terrorism and protect global security, often drawing on their military experience. These individuals may join private military contractors, volunteer with local militias, or engage in humanitarian efforts to counteract the influence of ISIS. However, their involvement is often controversial and raises questions about legality and the effectiveness of such actions.