The head of the Canadian Armed Forces says Canada may be called on to help defend Persian Gulf states from Iran's strikes as the U.S.-led offensive expands into a wider regional war. The head of the Canadian Armed Forces says Canada may be called on to help defend Persian Gulf states from Iran's strikes as the U.S.-led offensive expands into a wider regional war. The comments come after Prime Minister Mark Carney left the door op... [5078 chars]