We have Anglo-Saxon, Anglo-American, Anglo-Saxon Art, etc.

Anglo-American has always been explained as the culture of North America whose language is English and customs are those of Northern Europe. It can also mean a white inhabitant of the US and of non-Hispanic descent.

Sort of a catch-all phrase in todays' world - point is 7 lives were saved and, once again, congratulations to the people who did it, be they English, British, Norwegian or Polish and civilian or Navy.