Moore’s actions protected the rest of Spain from Napoleon’s advance.

Evidence

By daring, skill, and luck he had ruptured Napoleon’s winter campaign and had drawn the Emperor and his finest army into the least important part of Spain, thus affording protection and time for movements to get on foot in all the rest of the Peninsula. — Winston Churchill, A History of the English-Speaking…, 1598

Categorization

• corroborated: 2 independent passages support this claim — Winston Churchill, A History of the English-Speaking…, 1598