Vikings versus Normans as island defenders

Would Viking settlers have done a better job than the Normans of defending Sicily and Malta?

The video leaves the counterfactual open. Viking seafaring provides a reason to consider a stronger maritime defence, but no firm conclusion is offered.

The closing question compares the seagoing Vikings with the Norman elite that ruled Sicily and Malta. Earlier in the lecture, the Normans are portrayed as having shifted toward cavalry, armour and land warfare, leaving their island possession without strong naval protection. A Viking-founded kingdom might have retained a more maritime military culture, but the video does not decide the counterfactual. The comparison asks whether inherited military habits could have changed the defence of islands and sea routes.