 The operation codenamed "Cross" and the plan was that Bulgarian secret agents would set fire on the Ecumenical Patriarchate of Constantinople and make it look like the work of Turks.The declassified documents state that “An intervention” in the religious entity would have “significantly damage[d] Turkish-Greek relations and force[d] the United States to choose one side in the ensuing crisis,”.In addition, the Bulgarians also planned to boost the effect of its operation against Greece and Turkey by conducting “active measures" “for putting the enemy in a position of delusion."