This enlargement of 2004 - the fifth since 1973 - is by far the most ambitious in the EU's history. Indeed, it is comparable in importance to that of the original launch of the European integration process back in the 1950s. It ends the post-war division of Europe. It implies that a large part of the continent is now united in peace, stability and prosperity.
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Note: full article:

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Dave Ruston
We should be creating closer ties with the new members of the EU and stop depending on US trade.
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Jesse
About Canada and ESA,
The European Space Agency is composed of 15 Member States: Canada is a Cooperating Member and the only non-European country to participate directly in programmes in Earth Observation, telecommunications and technology development. Under the terms of the Canada-ESA Cooperation Agreement, CSAs? contributions to ESA programs are returned in the form of contracts to Canadian industry. (edited)
Hopefully that sheds some light.
Zimm