Submarines HS NIREFS (S-111) More HS TRITON (S-112) More HS PROTEFS (S-113) More HS POSEIDON (S-116) More HS AMFITRITI (S-117) More HS OKEANOS (S-118) More HS PONTOS (S-119) More HS PAPANIKOLIS (S-120) More HS PIPINOS (S-121) More HS MATROZOS (S-122) More HS KATSONIS (S-123) More