The army has 80 teams of hazardous-material specialists active throughout Italy.
Pope Francis announced his plans for the special blessing.
The Vatican announced Feb. 23 that the pope had signed the decrees.
"A specific and courageous response is required of the church."
"We must ask the Lord to give us the grace to work tirelessly."
"Life must be welcomed, protected, respected and served from its beginning to its end."
Pope Francis offered a short reflection on the day's Gospel reading.
"The use of atomic energy for purposes of war is immoral."
Having a high profile isn't a priority in his day-to-day work reaching out to migrants and Muslims
"There may be beings out there who are more wise or powerful than we are, but they will never be more human."