Military escalation appears inevitable in the eastern Mediterranean after Turkey announced new seismic research activity Aug. 10 in contested areas overlapping with a maritime zone that its arch foes Egypt and Greece agreed on last week.

Ankara issued a navigational notice — known as Navtex — that the mission of the Oruc Reis research ship, accompanied by two logistical vessels, will continue in the eastern Mediterranean until Aug. 23, the Anadolu news agency reported. Turkish military ships are likely escorting the mission. In the past, such escorts have been comprised of two or three frigates, two or three gunboats and a couple of submarines.

The announcement is a clear sign that Turkey will attempt a controlled escalation in the eastern Mediterranean after Egypt and Greece designated an exclusive economic zone between the two countries Aug. 6, raising the stakes for Ankara in a complex standoff in which energy rivalry has become entangled with the Libyan war.

The competition over energy resources comes atop Turkey’s decades-long territorial disputes with Greece and the Greek Cypriots and political bad blood with Egypt since the overthrow of the Muslim Brotherhood government in 2013.