Across 5,200 km of Canada's Arctic, its military spent two months on a mission to meet the challenges of a changing north.
16m
US blockade of Iran's ports set to start within an hour as Pope says he won't debate war with Trump
Donald Trump says a US blockade of Iranian ports will begin on Monday at 10:00 ET (14:00 GMT / 15:00 BST) - here's what you ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results