In contesting these priorities, members of the professional military leadership and their non-uniformed supporters may participate in the bureaucratic bargaining process of the state's policy-making apparatus, engaging in what might be termed a form of regulatory capture as they attempt to restrict the policy options of elected officials when it comes to military matters. An example of one such set of conditions is the "Weinberger Doctrine", which sought to forestall another American intervention like that which occurred in the Vietnam War (which had proved disastrous for the morale and fighting integrity of the U.S. military) by proposing that the nation should only go to war in matters of "vital national interest", "as a last resort", and, as updated by Weinberger's disciple Colin Powell, with "overwhelming force". The process of setting military budgets forms another contentious intersection of military and non-military policy, and regularly draws active lobbying by rival military services for a share of the national budget.