Quote Originally Posted by King Henry V
The Austrians weren't strong militarily even at the best of times, so I doubt they would be able to invade Britain
That is a mostly wrong Viewpoint. They where very strong and battled victorious against the Invading Ottomans, with Italian and german Douchies. However they were mostly fierce Diplomaths, which made Metternich defeat Napoleon.

They should not be underestimated!

Of Course, they could not have invaded Britain because of a very weak Navy.