What, according to Ruskin, are the three kinds of ‘noble war’?

Ruskin calls was as the foundation of all arts. He means to say that it is the foundation of all the high virtues and faculties of men. It is a practical fact that peace and vices of civil life flourish together. All nations realized the truth that war nourishes and invigorates them whereas peace wastes and debilitates them. But Ruskin does not refer to the wars of barbarians or the Scotch border