The Catholic Monarchs Isabella of Castile<span>, Queen of </span>Castile<span> and her husband </span>King Ferdinand<span>, King of </span>Aragon<span>, pursued a policy of joint rule of their kingdoms and created a single Spanish monarchy. </span>
A) he negotiated a clear border between Spain & France.
B) he stopped the Muslim advance from Spain into France.
C) he welcomed ambassadors and scholars from Moorish Spain.
D) he established a Christian kingdom in a corner of northern Spain.
Alfred Thayer Mahan recommended that the American military should focus on sea-power as the key to its success in any contemporary or future conflicts.
Sounds like you're talking about the holocaust.