Leaders of some of the world’s biggest economic powers arrive in the Canadian Rockies for a Group of Seven summit that's been shadowed by an escalating conflict between Israel and Iran and U.S.

President Donald Trump arrived in Washington, D.C., early Tuesday morning after abruptly leaving the G7 summit in Canada to address the escalating conflict between Israel and Iran.

When U.S. President Donald Trump last came to Canada for a Group of Seven summit, the enduring image was of him seated with his arms folded defiantly as then-German Chancellor Angela Merkel stared daggers at him.