The war in Ukraine rages on. If there is one force that can turn the tide of the war it must be a spiritual force, for that of arms and weapons has only succeeded in slaughter and destruction. Spiritual force? It has been absent for some time in Europe. A century and a half has gone by since the German philosopher Friedrich Nietzsche declared that 'God is dead.' Yet the continent was built on Christianity and its western part, on Catholicism. Pope...