This situation brought a critical spiral of internal conflicts and external invasions.

Is external invasion involved, or internal feuding?

Over his 35-year reign, the king faced several internal rebellions and external invasions.

So in case of any external invasion, they fought unitedly for the sake of their territory.

The confederation also acted as the peninsula's defender against external invasion and domination.

FID is a different approach than defense against external invasion or settling a major civil war.

This category does not include defense against external invasion by nation-state forces.

El-Mina traditionally was a walled city, with five outpost towers to protect the city from external invasion.

Pegu was now a completely spent force, vulnerable to internal rebellions and external invasions.

History shows that states are unstable entities, usually collapsing as a result of internal conflict or external invasion.