Canada’s initial position supporting Washington’s war in Iran shifted over the subsequent days as U.S. President Donald Trump’s objectives became more clear, Prime Minister Mark Carney told The Canadian Press.

“The scale of what the objectives were, or the clarity about what the objectives were, were not there at the start and have arguably evolved over time,” Carney said in a Friday interview.

On Feb. 28, the day the U.S. war on Iran began, Carney expressed unequivocal support for the action. A few days later he expressed regret that Washington did not consult the United Nations on a conflict that he said likely violates international law.