Gaza is the latest in a long line of atrocities committed by countries ostensibly committed to a law of armed conflict.
Afghanistan, Iraq, Libya, Syria... hell the US interventions in Somalia and the former Yugoslavia were as horrifying as they were criminal. Sometimes we can find an exigent threat that gives us permission to use overwhelming force to brutalize the bad guys - as in Iraq '91 with the Kuwaiti invasion. Other times we just have to make some shit up, as with Grenada or Vietnam.
But this idea that we've had an international order for any of the last 77 years is more a reflection on the quantity of our propaganda than the quality of our international ethics. The total war Israel is conducting in Gaza, while the US hovers overhead threatening to flatten any Egyptian or Jordanian or Lebanese who attempts to intervene, has been historic in the degree to which far more cushy liberal rhetoric has been replaced with full-throated endorsement of ethnic cleansing.
But the policies themselves? We manufactured a famine in Afghanistan shortly after withdrawing the last US troops. We have repeatedly blocked countries with socialist governments from accessing international markets to obtain relief, such as Bangladesh in '74 and Ethiopia ten years later. Somalia has been under near constant assault by US Navy vessels "policing" the most lucrative fishing territories, driving up rates of piracy as a substitute for traditional subsistence farming. Then you've got the '91 famine in N. Korea and the '94 Cuban hunger crisis, both the consequence of US blockades.
Any one of these would be considered a modern-day Holodomor from the perspective of an objective outside observer. Unfortunately, Americans only get to hear about Gaza - and even then only in dribs and drabs on social media or alt-news publications - as they turn away from the traditional corporate-friendly press venues.