Several prominent former U.N. human rights experts expressed regret Wednesday that a leading resistance organization in Myanmar has called for a nationwide armed uprising against the country’s military government.

The National Unity Government declared a “people’s defensive war” on Tuesday to remove the military from power.

The Special Advisory Council for Myanmar, which includes Yanghee Lee, the former U.N. special rapporteur on human rights in Myanmar, said in a statement that it understands the frustration of people in Myanmar “after seven months of brutality by the junta and inaction by the international community,” but said the call to arms was ”unfortunate.”