He applied his skill in engineering to toughen up the defence
<span>The crusades were a series of holy wars called by popes with the promise of indulgences for those who fought in them and directed against external and internal enemies of Christendom for the recovery of Christian property or in defense of the Church or Christian people.
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Answer: The correct answer is : high employment; economic growth
Explanation: The Federal Reserve's four goals of monetary policy are
price stability, high employment, economic growth, and stability of financial markets and institutions. Monetary policy refers to the actions the Federal Reserve takes to manage the money supply and interest rates to pursue its economic objectives.