Turkish President Recep Tayyip Erdogan is accusing several top naval officials of an attempted coup after they signed a document voicing concerns that government plans for a new canal may be in violation of an international treaty. 10 retired admirals are now in detention and four others have been ordered to turn themselves in amid Erdogan’s latest crackdown on critics. The canal, which would resemble the Suez and Panama Canals, is planned to connect the Black Sea to the Mediterranean and remain under strict Turkish military control, which critics warn risks angering Russia and eroding Turkish neutrality in the region