U.S says Greece has the right to apply border laws
A State Department official said the US was closely monitoring the situation on the Turkish-Greek borders
US State Department denies there is a mediation initiative on the Greek-Turkish dispute
He told a Greek reporter that there was no involvement of the US to de-escalate tensions between Greece and Turkey
US State Dept: We are doing our best to prevent conlfict between Greece and Turkey
Kim called the Turkish decision to acquire the Russian S-400 missile system problematic
