Only it wasn’t. GoW hung up on me, continuously playing some tsching sound. On the bright side: I didn’t loose the fight (so didn’t loose my bonus star in the next battle). On the other hand I lost my ‘investment’, some 500 gold or so to invade.
Fun fact: I solved the confusion I had why the ‘chess board’ looks different from battle to battle. It shows clearly that it’s partly transparant and the background shows the invaded (or defended) kingdom. Never realised that before!