As Pope Francis' visit to Rio de Janeiro for World Youth Day festivities draws near, the city has beefed up its security.<br/> <br />On Friday (July 19) afternoon some of the Brazilian military's most elite troops assigned to World Youth Day ran complex manoeuvres to train for the most serious of possible threats.<br/> <br />World Youth Day is an international gathering sometimes dubbed "Catholic Woodstock" that takes place in a different city every two years and is one of the Church's ways to try and reach newer generations of followers.<br/> <br />This year the event will last from July 23 until July 28 in the world's largest Catholic country, Brazil. Over a million people are expected to attend.<br/> <br />In preparation for such a high-profile event, Brazil has mobilized all its security forces to help defend the city on land, sea, and in the air.<br/> <br />According to Brazil's commanders in charge of security, an estimated 13,700 boots will be on the ground during the pope's visit, comprised mainly of m
