I think if you read our defence policy, you'll see it's quite clear that vis-à-vis ballistic missile defence it has not changed, but certainly we're committed and we recognize that our first job is to defend Canada. As our policy indicates, we're going to collaborate in a very detailed way with the U.S., to contemplate all of the threats that are presenting themselves, including some in the hybrid realm that were raised earlier.
On March 1st, 2018. See this statement in context.