++++ 1 . Common commercial policy - Protection against illicit commercial practices - Discretion of the Commission - Extent of the review by the Court in the context of an application brought by undertakings whose request for protective measures has been rejected - Decision on whether the practices criticized are compatible with the GATT rules - Subject to review ( Council Regulation No 2641/84 ) 2 . International agreements - GATT - Interpretation and application by the Court for the purposes of its review of decisions adopted by the Commission in connection with protection against illicit commercial practices ( General Agreement on Tariffs and Trade; Council Regulation No 2641/84, Art . 2(1 ) and Art . 3 ) 3 . International agreements - GATT - Assessment of a system of differential export duties in the light of the GATT rules - Inapplicability of Articles III and XI - Irrelevance of Articles XX and XXIII ( General Agreement on Tariffs and Trade, Arts . III, XI, XX and XXIII )