Mogherini made this statement before the second day of the summit in Riga.
"I think that this will be a good day for the EU and for each of the six partners," she added.
Eastern Partnership envisages the political association and economic integration of the EU with Azerbaijan, Armenia, Belarus, Georgia, Moldova and Ukraine. The last three countries signed an agreement on associated partnership with the EU in 2014.
The Eastern Partnership summit is being held in Riga on May 21-22. The presidents and the heads of the governments of the EU countries and the countries included in the program attend the summit.
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