If you disapprove of President Trump’s disregarding of international norms, the necessary implication is that you disapprove of U. S. foreign policy over the period of the half century. At New Republic John Glaser outlines the U. S.’s routine ignoring of international law and standards:
The pundits, practitioners, and politicians that make up the foreign policy establishment have rarely respected the non-interventionist principles at the core of the United Nations, an institution exemplifying the liberal rules-based international order that the United States helped establish following World War II. Article 2(4) of the UN Charter says “All Members shall refrain in their international relations from the threat or use of force against the territorial integrity or political independence of any state…” According to the Charter, which American post-war planners helped write, the use of force is illegal and illegitimate unless at least one of two prerequisites are met: first, that force is used in self-defense; second, that the UN Security Council authorizes it.
This prohibition against war is not some trivial aspiration. Non-intervention is the centerpiece of international law and the United Nations has repeatedly sought to underline its significance. In 1965, the General Assembly declared “No state or group of states has the right to intervene, directly or indirectly, for any reason whatever, in the internal or external affairs of any state.” Again in 1970, it unanimously reaffirmed the illegality of “armed intervention and all other forms of interference or attempted threats.” In 1981, the General Assembly further specified that the Charter’s “principle of non-intervention and non-interference” prohibited “any … form of intervention and interference, overt or covert, directed at another State or group of States, or any act of military, political or economic interference in the internal affairs of another State.”
The United States is currently engaged in active military hostilities in at least seven countries, namely Afghanistan, Iraq, Syria, Yemen, Somalia, Libya, and Niger. That tally doesn’t include drone strikes in Pakistan, combat operations in Kenya, Cameroon, and Central African Republic, or other interventions of unknown magnitude. The true number might be closer to 14 countries. The White House is also explicitly threatening U.S. military action to change the regime in Venezuela and against Iran for a host of spurious reasons. Not one of these cases meets the prerequisites for legal military intervention (a plausible self-defense case can be made for the war in Afghanistan, but it expired a long time ago).
It includes Trump but it’s not limited to Trump. It includes Republicans but it’s not limited to Republicans. These norms have been violated by every U. S. president over the period of the last 60 years.
I’m wary of entering into treaties but that’s because I don’t think we should sign a treaty which we have no intention of honoring. I think that’s not only a violation of important norms but against U. S. interests.