An Italian KC-767 will come to Brussel on the 19th twice. In the morning it will leave at 7.30 to Trapani and in the evening at 22.45 it will arrive again from Lisbon. It is the same aircraft doing a roundtrip with VIPs for the kickoff of the Trident Juncture exercise.
I have no info on when it will arrive (18th or 19th) and when it will leave again.
More info and ultimate source.
Erwin