The priest said although parishes in the Holy Land tell their parishioners to resist occupation by educating themselves and preparing for the future, people in Gaza see no future.
Christian and Muslim leaders in the Central African Republic have accused foreign states of complicity in a May 1 gun and grenade attack on a Catholic Mass.
Bishop Gassis' visits came in the middle of decades of on-again, off-again fighting between the central government and several rebel movements in the South and other peripheral areas of the country.