WEBF -we're in the same situation as the Argies in the deep south - both of us have a specific vessel for use in the area, both of them are buggered and will cost too much to fix
both of us have hired (at some cost) a temporary icebreaker or ice capable vessel from third parties to keep up the fig leaf that we have capability
Actually there is no reason why the BAS couldn't hire commercial helicopters for resupply use