3 July - The European Commission blocks the proposed merger between American companies General Electric and Honeywell, the first time European regulators have prevented such a move.
20 September - In the wake of the September 11 attacks, anti-terrorism measures such as EU-wide search and arrest warrants and the establishment of an anti-terrorism department within Europol are announced.
14 December - Euro coins first go on sale in banks in preparation for its public release into the Eurozone the following month.