FOREI G N NEWS,BULGARIA: Through the Curtain

BULGARIA

One of the most highly fortified and guarded pieces of real estate in Europe is a patch of ground where the borders of Yugoslavia, Bulgaria and Greece meet in the wild Belasica Mountains overlooking the Struma and Strumica river valleys, one of the historic invasion routes to the Aegean Sea. There, one sunlit morning last week, Greek Lieut. Vassili Arkoudas, on duty in the most forward of the Greek outposts, was startled by the sound of heavy antiaircraft fire.

From his stone observation post, a scant 300 ft. from the Bulgarian border, Arkoudas and a handful of tough, mustached Greek soldiers...