Translate the following English sentence to French:
"This whole range of projects, designed to strengthen the fight against illegal immigration, will be the subject of a seminar on criminal networks, which is to be held in Paris on 20 and 21 July, in other words, in a few days' time."
L'ensemble de ces projets destinés à renforcer la lutte contre l'immigration irrégulière fera l'objet d'un séminaire sur les filières qui doit se tenir à Paris les 20 et 21 juillet, dans quelques jours donc.