Mr. Chair, the threshold would be very high. Article 5 has been triggered only once in the alliance's 72 or 73 years. That was in response to the 9/11 attack in the United States.
There is no specific written definition of the criterion that would need to be satisfied, but it would certainly involve loss of life and massive military impact. It's something we are discussing in terms of trying to codify it a bit more clearly, but it's very clear that there would be a requirement for loss of life and massive impact.