Notes: This Czech aircraft is a trainer that can also be used as a light attack aircraft. It is a light aircraft with a light weapon load, but it is cheap and easy to maintain. It is used by most of the former Warsaw Pact (though in steadily decreasing numbers). It has also been exported outside of Europe, mainly to the Middle East. The two wingtip hardpoints may be used only for drop tanks.

Twilight 2000 Notes: Some former East German Delfins were put into use by Germany during the Twilight War.

Notes: The L-39 is the successor to the L-29 Delfin in Warsaw Pact service. There are three versions, the trainer/attack aircraft, and the dedicated attack aircraft (L-39ZA) with a cannon under the fuselage. This aircraft is used by all former Pact air forces except Poland, and several other allied air forces. The two wingtip hardpoints may only carry drop tanks.

The L-159 is an L-39 with a more powerful engine, redesigned nose, upgraded avionics, standard internal cannons, and hydraulic assist for its controls. It can carry heavier loads and is more responsive at high speeds. Like the L-39, the two wingtip hardpoints may only be used for drop tanks.

Twilight 2000 Notes: A few of these aircraft (mostly L-39ZOs) were used by Germany during the Twilight War. These were aircraft that were captured intact from Czechoslovakia early in the war.