Stop the reasons that, in your opinion, allowed the Frankish kingdom to rise?

After the fall of the Roman Empire, the first barbarian states began to emerge on its territories. One of the largest of these was the Frankish kingdom. Its first king was Clovis of the Merovingian dynasty. The Frankish kingdom expanded rapidly. The main reasons for the rise of the Frankish kingdom include: the aggressive policy of Clovis, a strong army, as well as support from the Pope. It should also be noted here that the Frankish kingdom was the only such barbarian entity that could survive. Others (the kingdom of the Vandals and others) were destroyed.