The UN Charter …
“to ensure, by the acceptance of principles and the institution of methods, that armed force shall not be used, save in the common interest,”
Here is the crux. I believe that it is clearly in the “common interest” to – where possible – save fellow-humans from oppression, torture and death.
Others, however, believe that the “common interest” means “letting them fight it out” so that we can continue our comfortable lives unaffected by the suffering of others at the hands of dictators.
If we deny that aiding – where possible – those oppressed by dictators is relevant to the “common interest”, we are underlining OUR interest and not any interest that is COMMON to the oppressed. The oppressed, tortured and murdered are thereby EXCLUDED from “the common interest.”
Well done, Chavez, Castro, Mugabe et al.