Britons successfully resisted invaders for nearly two hundred and fifty years

Evidence

The conflict ebbed and flowed. British victories were gained, which once for a whole generation brought the conquest to a halt; and in the end the mountains which even the Romans had been unable to subdue proved an invincible citadel of the British race. — Winston Churchill, A History of the English-Speaking…, 121

Categorization

• XREF: This passage connects with broader themes of cultural resilience against invaders. — connects to: Roman comforts rendered Britons less effective against invaders — Winston Churchill, A History of the English-Speaking…, 121
• corroborated: 2 independent passages support this claim — Winston Churchill, A History of the English-Speaking…, 121