ATHENS, Greece—Greece accused neighbor Turkey of undermining efforts to ease a crisis over eastern Mediterranean drilling rights on Oct. 12, after Ankara redeployed a survey vessel for new energy exploration in disputed waters—including an area very close to a secluded Greek island.
The move reignited tension over sea boundaries between Greek islands, Cyprus, and Turkey’s southern coast that had flared up over the summer, prompting a military build-up, bellicose rhetoric, and fears of a confrontation between the two NATO members and historic regional rivals.