Where can the UN attack team go?

In this novel when the United Nations attack team were needed most they weren't allowed to help out. This is because Costa Rica, the country Kurt was in, wouldn't allow this. So, this led to the death of 450 people onboard the Sea Sentinel. Had the team been allowed to come the terrorists would have been stopped, and with almost no casualties. But since the team wasn't given jurisdiction many people suffered losses. I believe that the United Nations attack team should have jurisdiction in any country if the council should prove it necessary to use combat.