Francis celebrated Mass to mark the the 200th anniversary of the Vatican Gendarme

Visitors to World Youth Day will have to walk 18 miles to and from one of the main sites in Krakow

The meeting near Krakow on July 31 has been a security headache for authorities

Leaked report says the site in Poland poses a ‘high risk for the life and health of people’

Security is expected to be extremely tight in Krakow for WYD 2016, which will take place in July

Francis will visit Kenya, Uganda and Central African Republic at the end of November

The Pope also defended his lack of security, saying ‘at my age I don’t have much to lose’

The Pope’s personal safety is dominating discussion among Catholics

The detail emerged as the Holy See formally announced the Pope’s state visit