Hitler's blunders contributed to the allied victory; ex, withholding the Panzer reserves away from local control of Rommel prior to the Normandy invasions. His stance of not retreating, led to the debacle of the Falaise pocket which destroyed many of his best divisions in the west, among them the 12th SS, Panzer Lehr, and others. Hope this helps.
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the catholic church unified different kingdoms of Europe under the umbrella of the church. An example is when the church crowned kings as emperors of the holy catholic empire.
the catholic church intervened and settled disputes between rival kings and lords. whenever, there were disputes the king was always at the forefront to handle and resolve disputes.
