It is a cached-belief bias: that the assassination of any foreign head of state is immoral. Such formalism is irrational when considering a radically new development.
There nothing radically new about getting heads of state in Europe that want to wage wars. European’s in that time aren’t like modern American’s who have no concept of honor and no respect for international law. European’s fought their wars according to a honor codex that allow certain form of violence but forbids other forms.
Given the morality of the time it is indecent to violate the laws of war and go and assassinate a foreign head of state.
Neither side of WWII fully followed international law and principles of honorable behavior at all times but when they didn’t followed those principles they still were indecent.
You shouldn’t forget the fact that Germany started WWI because of an assassination of a head of state by a government that was allied with Germany. That assassination wasn’t done by France of Great Britain. Even when the British still considered Germany to be responsible for WWI they didn’t thought to highly of that assassination.
There nothing radically new about getting heads of state in Europe that want to wage wars. European’s in that time aren’t like modern American’s who have no concept of honor and no respect for international law. European’s fought their wars according to a honor codex that allow certain form of violence but forbids other forms.
Given the morality of the time it is indecent to violate the laws of war and go and assassinate a foreign head of state. Neither side of WWII fully followed international law and principles of honorable behavior at all times but when they didn’t followed those principles they still were indecent.
You shouldn’t forget the fact that Germany started WWI because of an assassination of a head of state by a government that was allied with Germany. That assassination wasn’t done by France of Great Britain. Even when the British still considered Germany to be responsible for WWI they didn’t thought to highly of that assassination.