I agree with Fred in that we need to hold a higher military presence in the North, more show-of-force operations, and our ability to bomb their asses if they enter our waters.
Hopefully (and probably) this situation will be dealt with diplomatically, but if it doesn't, then my attitude towards these 'northern excursions' is to piss off or wreak the consequences
(Unfortunatley, our military doesn't have the capability to back my opinion

)