As the Roman Empire started to crumble in Western Europe, there were also mass migrations by peoples as a result of war and famine. In an attempt to keep his grip on Roman Britain, the Romano-British Warlord Vortigen employed Saxon mercenaries in 428 AD to help quell the British tribes. Unfortunately, rather than going home after he was done with them, they decided to stay in Britain and invite over their friends and families. Over the next decades the Saxons, along with other German tribes (Angles and Jutes), established themselves in Eastern Britain and then pushed west conquering land and pushing the British tribes into the West Country and Wales. Britain would never be the same again.