Translate the following English sentence to French:
"An attempt to that effect was made by KLM and Alitalia, but this has now been abandoned, due in actual fact to a number of problems related to nationality, if I can put it that way."
KLM et Alitalia en ont tenté une, mais elle a éclaté, en raison d' un certain nombre de complications liées à la nationalité, si je puis m' exprimer ainsi.