Apersistent pattern of close relations among the department of defense, the senate and house committees on the armed forces, and defense industry contractors, with the intent of dominating policy-making in the sphere of defense, would be considered

That would be considered an example of the Iron Triangle in US government. The Iron Triangle consists of three groups: Congress (the committees), Bureaucracy (the Department of Defense), and Interest Groups (the defense industry). A close relation between the three points on the triangle signals the intent to dominate policy-making regarding defense.