On Caligula Amassing Hundreds of Thousands of Roman Soldiers In the Region of Normandy (it Wasn't Called Normandy at the Time but for Geographical Clarity) and Instead of Having Them Traverse the English Channel to Attack Great Britain He Put Them to Work Collecting Seashells

Yeah, he must have concluded that if Julius Caesar and Augustus couldn't quell that untamed and mysterious land, what chance did a schmuck like he have (possible a miscue in that Claudius ultimately closed the deal with a significantly smaller force)?............Either that or the fellow was insane. Who knows.