Open this photo in gallery: Canada has drafted a set of requirements for new submarines that will be in the water a decade from now and capable of delivering a lethal presence to parts of the Arctic where the country currently has little ability to detect and deter foreign intruders. The submarine HMCS Windsor returns to Halifax on Aug. 9, 2016.Darren Calabrese/The Canadian Press Canada’s Arctic patrol submarines will not be able to surface through ice – and defence planners expect to patrol the country’s northern waters from southern naval ports that are closer to Pearl Harbor than Tuktoyaktuk. Last...