Reaffirming hope for a just world on International Day of PeaceListen /
The United Nations is calling for an end to conflict, if only for one day.
The International Day of Peace, observed on 21 September, is an opportunity to strengthen the ideals of non-violence, both within and among all nations and peoples.
It has been celebrated each year since 1982.
Gerry Adams reports on this year's observance.