joint action septemb adopt council basi articl treati european union measur implement articl treati jha council european union regard treati european union articl thereof adopt joint action articl purpos achiev object refer articl treati union carri measur relat train gather exchang inform experi seminar studi public oper measur support cooper activ articl decis financ measur articl accord articl treati articl joint action enter forc dai adopt brussel septemb council presid belloch julb