Scholars who reflect on the Vietnam War, particularly in light of the leaked Pentagon Papers $($officially titled Report of the Office of the Secretary of Defense Vietnam Task Force$)$ note that the true geopolitical goal of the United States was to contain the influence of China rather than to help the Vietnamese people. Assuming this is true, which principle is primarily violated?

proportionality $($jus ad bellum$)$

discrimination $($jus in bello$)$

right intention

reasonable hope for success