The U.N. human rights chief on Monday warned that a system of global protections built in the decades after World War Two has never before been under so much strain, calling for an effort to reinforce it or risk suffering the atrocities of the past.

Myanmar is mired in one of the world’s worst human rights crises, UN High Commissioner for Human Rights Volker Türk said on Friday, describing conditions there as “a litany of human suffering.”

U.N. Secretary-General António Guterres says human rights are being “suffocated” around the world. He lashed out at voices of division and anger who see human rights as a barrier to their quest for power and profit.