Greek Foreign Minister Nikos Dendias, right, and his Turkish counterpart Mevlut Cavusoglu talk to the media during a press conference after their meeting in Athens, Monday, May 31, 2021. The two foreign ministers are to make statements to the press after their meeting. It will be the first time the two have spoken together in public since the two held a joint press conference Ankara in April which descending into a trading of barbs and accusations as the two listed their respective country's differences with the other. (AP Photo/Petros Giannakouris)

Greek Prime Minister Kyriakos Mitsotakis, right, speaks with his Turkish counterpart Mevlut Cavusoglu before their meeting at Maximos Mansion in Athens, Monday, May 31, 2021. Cavusoglu on Sunday began his trip to Greece with an unofficial visit to the northeastern province of Thrace, where most of Greece's Muslim minority resides. Greek officials view the visit as preparing a meeting between Greek Prime Minister Kyriakos Mitsotakis and Turkish President Recep Tayyip Erdogan in mid-June, on the sidelines of a NATO summit. (AP Photo/Petros Giannakouris)

Greek Prime Minister Kyriakos Mitsotakis, right, speaks with his Turkish counterpart Mevlut Cavusoglu before their meeting at Maximos Mansion in Athens, Monday, May 31, 2021. Cavusoglu on Sunday began his trip to Greece with an unofficial visit to the northeastern province of Thrace, where most of Greece's Muslim minority resides. Greek officials view the visit as preparing a meeting between Greek Prime Minister Kyriakos Mitsotakis and Turkish President Recep Tayyip Erdogan in mid-June, on the sidelines of a NATO summit. (AP Photo/Petros Giannakouris)

Greek Prime Minister Kyriakos Mitsotakis, center, with his Turkish counterpart Mevlut Cavusoglu, left, and the Greek Foreign Minister Nikos Dendias during their meeting at Maximos Mansion in Athens, Monday, May 31, 2021. Cavusoglu on Sunday began his trip to Greece with an unofficial visit to the northeastern province of Thrace, where most of Greece's Muslim minority resides. Greek officials view the visit as preparing a meeting between Greek Prime Minister Kyriakos Mitsotakis and Turkish President Recep Tayyip Erdogan in mid-June, on the sidelines of a NATO summit. (AP Photo/Petros Giannakouris)

Greek Prime Minister Kyriakos Mitsotakis, right, speaks with his Turkish counterpart Mevlut Cavusoglu before their meeting at Maximos Mansion in Athens, Monday, May 31, 2021. Cavusoglu on Sunday began his trip to Greece with an unofficial visit to the northeastern province of Thrace, where most of Greece's Muslim minority resides. Greek officials view the visit as preparing a meeting between Greek Prime Minister Kyriakos Mitsotakis and Turkish President Recep Tayyip Erdogan in mid-June, on the sidelines of a NATO summit. (AP Photo/Petros Giannakouris)

Greek Foreign Minister Nikos Dendias, right, talks with his Turkish counterpart Mevlut Cavusoglu during their meeting in Athens, Monday, May 31, 2021. Cavusoglu on Sunday began his trip to Greece with an unofficial visit to the northeastern province of Thrace, where most of Greece's Muslim minority resides. Greek officials view the visit as preparing a meeting between Greek Prime Minister Mitsotakis and Turkish President Recep Tayyip Erdogan in mid-June, on the sidelines of a NATO summit. (AP Photo/Petros Giannakouris)

Greek Foreign Minister Nikos Dendias, right, and his Turkish counterpart Mevlut Cavusoglu leave the podium after a press conference after their meeting in Athens, Monday, May 31, 2021. The two foreign ministers are to make statements to the press after their meeting. It will be the first time the two have spoken together in public since the two held a joint press conference Ankara in April which descending into a trading of barbs and accusations as the two listed their respective country's differences with the other. (AP Photo/Petros Giannakouris)

Greek Foreign Minister Nikos Dendias talks to the media during a press conference after a meeting with his counterpart Mevlut Cavusoglu in Athens, Monday, May 31, 2021. The two foreign ministers are to make statements to the press after their meeting. It will be the first time the two have spoken together in public since the two held a joint press conference Ankara in April which descending into a trading of barbs and accusations as the two listed their respective country's differences with the other. (AP Photo/Petros Giannakouris)

Greek Foreign Minister Nikos Dendias, right, and his Turkish counterpart Mevlut Cavusoglu talk to the media during a press conference after their meeting in Athens, Monday, May 31, 2021. The two foreign ministers are to make statements to the press after their meeting. It will be the first time the two have spoken together in public since the two held a joint press conference Ankara in April which descending into a trading of barbs and accusations as the two listed their respective country's differences with the other. (AP Photo/Petros Giannakouris)

Greek Foreign Minister Nikos Dendias, right, talks with his Turkish counterpart Mevlut Cavusoglu before a meeting in Athens, Monday, May 31, 2021. Cavusoglu on Sunday began his trip to Greece with an unofficial visit to the northeastern province of Thrace, where most of Greece's Muslim minority resides. Greek officials view the visit as preparing a meeting between Greek Prime Minister Mitsotakis and Turkish President Recep Tayyip Erdogan in mid-June, on the sidelines of a NATO summit. (AP Photo/Petros Giannakouris)

Greek Prime Minister Kyriakos Mitsotakis, center, with his Turkish counterpart Mevlut Cavusoglu, left, and the Greek Foreign Minister Nikos Dendias during their meeting at Maximos Mansion in Athens, Monday, May 31, 2021. Cavusoglu on Sunday began his trip to Greece with an unofficial visit to the northeastern province of Thrace, where most of Greece's Muslim minority resides. Greek officials view the visit as preparing a meeting between Greek Prime Minister Kyriakos Mitsotakis and Turkish President Recep Tayyip Erdogan in mid-June, on the sidelines of a NATO summit. (AP Photo/Petros Giannakouris)

Greek Foreign Minister Nikos Dendias, right, and his Turkish counterpart Mevlut Cavusoglu talk to the media during a press conference after their meeting in Athens, Monday, May 31, 2021. The two foreign ministers are to make statements to the press after their meeting. It will be the first time the two have spoken together in public since the two held a joint press conference Ankara in April which descending into a trading of barbs and accusations as the two listed their respective country's differences with the other. (AP Photo/Petros Giannakouris)

Greek Foreign Minister Nikos Dendias, right, talks with his Turkish counterpart Mevlut Cavusoglu during their meeting in Athens, Monday, May 31, 2021. Cavusoglu on Sunday began his trip to Greece with an unofficial visit to the northeastern province of Thrace, where most of Greece's Muslim minority resides. Greek officials view the visit as preparing a meeting between Greek Prime Minister Mitsotakis and Turkish President Recep Tayyip Erdogan in mid-June, on the sidelines of a NATO summit. (AP Photo/Petros Giannakouris)

Greek Prime Minister Kyriakos Mitsotakis, right, speaks with his Turkish counterpart Mevlut Cavusoglu before their meeting at Maximos Mansion in Athens, Monday, May 31, 2021. Cavusoglu on Sunday began his trip to Greece with an unofficial visit to the northeastern province of Thrace, where most of Greece's Muslim minority resides. Greek officials view the visit as preparing a meeting between Greek Prime Minister Kyriakos Mitsotakis and Turkish President Recep Tayyip Erdogan in mid-June, on the sidelines of a NATO summit. (AP Photo/Petros Giannakouris)

Greek Foreign Minister Nikos Dendias, right, and his Turkish counterpart Mevlut Cavusoglu talk after a press conference and their meeting in Athens, Monday, May 31, 2021. The two foreign ministers are to make statements to the press after their meeting. It will be the first time the two have spoken together in public since the two held a joint press conference Ankara in April which descending into a trading of barbs and accusations as the two listed their respective country's differences with the other. (AP Photo/Petros Giannakouris)