This "Christmas tree" is in front of the Church of the Nativity in Bethlehem, decorated with Israeli "bombs" (actually, tear gas canisters), "to be in front of visitors from all countries of the world, to remind them of the occupation crimes."
Apparently, the municipality of Bethlehem removed the exhibit but the organizers returned to put it up again.
What a surprise that Christmas is just another excuse to score political points. In Bethlehem, it sure isn't about Jesus.
UPDATE: Video (h/t Bob Knot)