A file photo of the navy destroyer Themistocles III, which has been docked in Crete since being decommissioned in 1992 and which was to be sunk to a depth of 1,000 meters yesterday. A navy submarine was to sink the destroyer, which Greece bought in 1971 with US military aid. The program also provides for the continuation of the Attica S0S program, with an emphasis on linking green spaces in urban and suburban areas. About 5,000 hectares on the Pikilos mountain and the Aigaleo forest in western Attica alone are to be planted with 5 million trees and shrubs. Laliotis said 300,000 hectares of land in Attica including the surrounding mountain ranges would be covered by the program of emergency protection.