Translate the following English sentence to French:
"Taking account of the internationally agreed trading rules within the WTO, the GATT Agreement and the internal market strategy of the European Union, we should be arguing in favour of introducing a tariff only system as quickly as possible."
Si l' on prend en considération les règles commerciales internationales convenues au sein de l' OMC, les accords du GATT et la stratégie de marché intérieur de l' Union européenne, il convient de plaider pour l' instauration la plus rapide possible d' un système exclusivement tarifaire.