Not quite sure which part of intra-national diplomacy you don't understand,
Treaties are made and broken based on pragmatism as much as principle. They are neither moral nor immoral, for a large part, they are just pragmatic. Stop seeking morality where it does not and cannot exist. Much easier to follow Jesus' example and "render unto Caesar what is Caesar's…" because the kingdom of God/righteousness over which Jesus rules is "not of this world."
>I don't get what you mean.
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>Be more specific.
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>I hope you're not trying to imply that the US should let the crimes of Israel go unpunished just because some people think it's better not to rock the boat.
All treaties are pragmatic as opposed to principled. Which is to say, they benefit the signatories at that moment in time. That doesn't make them either moral or immoral - just beneficial to the signatories. And this may, and will, change over time.
The issue of "righteousness" or" morality" belongs to a different realm - a spiritual realm (rightyeousness is abstract, not concrete) which is what the Pharisees were unable to understand. Jesus said to "render unto Caesar" which is to say, give the governing power the tribute it demands, without moral judgement, and the Pharisees couldn't cope with this. Jesus went on to explain that His kingdom is NOT of this world - it is a spiritual kingdom that reigns in and via the hearts of individuals who worship the Creator, the author of everything, including morality and passing human kingdoms, etc. The kingdom Jesus spoke of surpasses all worldly kingdoms because it is a spiritual kingdom that supercedes any worldly kingdom.
>And what are the practical implications of that in your opinion to our current state of affairs?
Maybe to understand that DJT's moving of embassy to Jerusalem and recognition of Israel's right to self-defence via inclusion of Golan Heights in their territory, are PRAGMATIC not MORAL indicators of his relationship with Israel. ie. they are America First policies. That doesn't automtically render them either moral or immoral - just beneficial to America.
The propaganda which the left is trying to brainwash people with is that all policies are necessrily moral or immoral. Moral if they're Dem policies and immoral if they're Repub policies. But in reality, morality doesn't come into it - it's about power and retention of same, nothing whatsoever to do with morality. Morality belongs to a different realm - it exists in the heart of individuals who have chosen to follow righteousness (as summed up by the golden rule - love your neighbour etc) above self-interest.
My point is that there exist two types of kingdom - worldy/material kingdoms and the Kingdom of God which is a spiritual kingdom, and never the twain shall meet.