Translate the following English sentence to French:
"It is this Barcelona process - and this brings me to the end of what I have to say - which the presidency wishes to leave its mark on and to start on at the forthcoming Barcelona IV meeting."
C'est ce processus de Barcelone - et c'est là que j'en termine - que la présidence souhaite marquer, engager dès la prochaine réunion de Barcelone IV.