EU leaders agreed a package of 20 "deliverables" with Ukraine, Georgia, Moldova, Armenia, Azerbaijan and Belarus to help them tackle corruption, improve the rule of law and modernise their economies.
Brussels insists its so-called Eastern Partnership with the six states is "not aimed at any country" and a joint declaration issued after the summit scrupulously avoided any mention of Russia.
But concerns are running high in Europe over the Kremlin's use of cyber tactics and misinformation to cause political destabilisation around the continent and draw former Soviet states into its embrace.
German Chancellor Angela Merkel said the EU's partnership with the six states was "very important for our own security", without mentioning Russia specifically.
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The likes of Moldova and Ukraine have urged the European Union to send a welcoming signal to their people to counter the siren call of Moscow.
Moscow regards the countries as part of its sphere of influence and has opposed them getting closer to the EU.
But there is no appetite in the EU for eastward expansion, particularly after Dutch voters rejected the first attempt at an association accord with Ukraine in an April 2016 referendum.
"This is not an enlargement or accession summit," European Commission President Jean-Claude Juncker said as he arrived.
A European diplomat gave an even more blunt assessment.
"Maybe they see this as the waiting room for the waiting room (for membership) but for us it's clear that before the waiting room there are 18 locked doors," the diplomat said.
The final summit declaration simply acknowledges the "European aspirations and European choice" of Ukraine, Moldova and Georgia.
The EU hopes that focusing on concrete measures that will improve people's lives in the partner countries -- such as small business loans and reducing mobile phone roaming charges and energy costs -- will improve its popularity and see off the lure from Moscow.