This poster and reflection were on the glass door of the Christian Information Center in the Old City.
You can click on it (and click again on the photo that opens) and read about the " 8th Extraordinary Prayer of all Churches for Reconciliation, Unity and Peace, beginning in and proceeding from Jerusalem,"
being hosted by the Armenian Catholics.
You can watch it in live streaming video
--at 6:00 pm Israel time (4:00 pm GMT or 8:00 am California time).
Check on the handy time zone converter timeanddate.com.
Let's hope their prayer helps the situation.
UPDATE: It was a nice broadcast of the ecumenical service.
That same Franciscan Media Center that shared it online is a good source for documentary videos on religious life in the Holy Land.