Biscay Campaign

March 31 – July 1, 1937 · Biscay

Result Nationalist victory

Nationalist forces, with strong material superiority, attacked the Basque-held province of Vizcaya. They broke the defences around Bilbao and captured the city and the surrounding province.

Nationalist Spain

Republicans

Spain

Strength and losses

Strength
65,000
Killed
4,500
Aircraft
150
Guns
200
Strength
55,000
Casualties
35,000
Aircraft
25–30
Guns
140