The climb is the part of a flight of an aircraft, after take off, consisting of getting an Aircraft to the desired cruising[?] altitude. More generally, the term 'climb' means increasing the altitude.
... [SRI]
Russia
Federalnaya Sluzhba Bezopasnosti (FSB, successor of KGB)
Glavnoye Razvedyvatelnoye Upravlenie[?] (GRU)
Sluzhba Vneshney Razvedki[?] (SVR)
Union of ...