Pope John Paul II appealed for peace between peoples and nations Saturday as he celebrated Mass on a snow-covered mountain that was the site of a bloody World War I battle between Italian and Austrian troops.

The Roman Catholic pontiff spoke from a granite altar at an altitute of 10,171 feet on the Adamello peak a few feet from a tangle of rusted barbed wire where the flags of Italy and Austria fluttered in the breeze."How many times was the white of the snow colored by blood?" he asked. "Our thoughts go to all those who have fallen on the Adamello, to all the victims of war past and pres-ent, to their families, to their shattered ideals.

"And, while we raise prayers for their souls, we express anew our yearning and our entreaty for peace, for brotherhood, for harmony among peoples and nations," John Paul said.