Okay, I think I'll let the submarine expert at the table answer that question. But suffice it to say, any modernization effort is going to be designed to ensure that the platform is able to function in a threat environment that we intend to use it in. It's going to involve all the systems of the submarines to ensure that we can defend the underwater approaches to Canada, in combination with underwater RPSs, remotely piloted systems, as well as to project offshore. I think Monsieur Finn will explain.
On June 20th, 2017. See this statement in context.