Why Do We Have Guantanamo in the First Place?

The deadline for a decision on what to do with the Guantanamo prisoners has come. But why are we in Guantanamo in the first place? We have had a protectorate over Cuba since the Spanish American War. Our Guantanamo Bay base has unmistakable strategic importance. Even Castro’s Cuban Revolution didn’t change this. It is a secure military base, actually an ideal place for detaining potential terrorists.