But then rumors of an impending Anglo-Russian invasion of the Batavian Republic began to circulate. This convinced the "Uitvoerend Bewind" that any foreign adventures had to be abandoned until this danger had been averted. The rumors eventually proved to be more than rumors, and the invasion took place in August of 1799, beginning with the British amphibious landing at Callantsoog, covered by a British fleet under Admiral Andrew Mitchell.