The EU’s “Geopolitical” Enlargement Strategy Risks Deepening The Security Dilemma With Russia

By Uriel Araujo

Brussels now calls EU enlargement a “geopolitical imperative.” With Ukraine and Moldova moving toward membership, the strategic implications for Russia are becoming harder to ignore.

The European Commission has now declared enlargement a “geopolitical imperative” – with important implications.

The bloc has just presented a package of reforms designed to prepare the Union for new members – with Ukraine and Moldova at the centre of the effort, alongside Albania and Montenegro.

Commission President Ursula von der Leyen stated that “Europe’s future depends on the choices we make today,” framing expansion as essential to making the bloc “more resilient” and better able to shape its own destiny.

Candidate countries are already advancing: Ukraine and Moldova opened their first negotiating cluster in June 2026, and in July, opened Cluster 6 on external relations, foreign policy, security and, importantly, defence. In the words of Vessela Cherneva: “Currently, EU membership is the only way to integrate Ukraine’s and Europe’s security systems.”

The Commission plans “indicative roadmaps” for these four frontrunners (Ukraine, Moldova, Montenegro, and Albania) in its 2026 Enlargement Package, provided reform momentum continues. Gradual integration into strategic sectors such as energy, transport, digital networks and defence is explicitly on the table

This is no longer presented as a purely technical or economic process. Again, Brussels itself now describes enlargement as a “geopolitical” tool linked to European safety, prosperity and security. One may recall that earlier enlargement rounds were often framed in terms of shared values and market access.

Political scientist John Mearsheimer has long argued that the West’s “triple package” of policies – NATO enlargement, EU expansion and Western-style democracy promotion – added fuel to a fire waiting to ignite – meaning the Ukrainian crisis since 2014.

Actually, in his view, the trouble over Ukraine began in earnest at NATO’s 2008 Bucharest summit, when the alliance announced that Ukraine and Georgia “will become members”.

Russian leaders treated this as an existential threat. Washington ignored the red line and continued to push Ukraine toward Western institutions, including closer ties with the EU.

Back in his 2014 analysis Mearsheimer noted that the Union’s eastward march and the Eastern Partnership initiative were viewed in Moscow as hostile enough. “In the eyes of Russian leaders, EU expansion is a stalking horse for NATO expansion,” he wrote.

In this framework, the West’s efforts to promote “democracy” and “peel Ukraine away” from Russia completed the package. When Yanukovych rejected an EU deal in 2013, the “spark”, as Mearsheimer puts it, came. The result was crisis, then war. If one applies that framework consistently today, the resulting picture is quite straightforward.

To be clear, EU membership is not identical to NATO membership. Yet from a Russian great-power perspective the distinction becomes less meaningful when the two institutions are moving in the same geographical direction.

EU accession after all entails progressive alignment on law, foreign-policy positions, sanctions, energy, borders and increasingly elements of security and defence cooperation. The point is that an EU-member Ukraine would be economically, legally, institutionally and politically embedded in a Western bloc – and the same applies to the other Eastern European states. That, in broad terms, is precisely the structural transformation process Mearsheimer argued helped fuel the 2014 and then the 2022 crisis.

Ukraine remains the clearest case in point: before 2014 it functioned as a contested buffer. Mearsheimer (as well as specialists of the calibre of Henry Kissinger and Stephen Walt) argued a neutral Ukraine would be preferable, from a Western perspective – akin to Austria during the Cold War. In any case, the trajectory now points toward full Western institutional integration.

Moldova is arguably just as sensitive: it has a Russian military presence in Transnistria, occupies a strategic position between Ukraine and Romania – and is accelerating toward EU membership while deepening practical cooperation with Western militaries.

The recent Independence Day parade in Chișinău illustrated the point (without Soviet symbology, for the first time), as I’ve commented: Moldovan troops marched with Western weapons and vehicles; contingents from the Ukraine and eight NATO members, including the US, took part. NATO’s Political Committee had visited just days earlier, describing intensified cooperation.

Moldova for its part remains formally neutral, yet it is simultaneously negotiating EU accession – including the cluster on external relations and defence policy – and publicly displaying Euro-Atlantic partnerships. The Western centre of gravity (post-USAID) in Moldova is shifting toward Brussels, which has stepped in with a large Reform and Growth Facility.

From Moscow’s point of view, the cumulative process looks like progressive incorporation of its western strategic environment into a Western political-security system.

Historically, great powers care intensely about the direction of strategic change in their immediate neighbourhood. They typically do not wait until the process is complete before reacting – as seen in 2022.

In any case, the EU now frames enlargement itself as a geopolitical and security instrument. This language reinforces the very security dilemma Mearsheimer identified over a decade ago. The buffer zone between Russia and the Western institutional order continues to shrink. The risks of further escalation keep rising eastwards – adding to the tensions farther north, in the Baltic.

Uriel Araujo, Anthropology PhD, is a social scientist specializing in ethnic and religious conflicts, with extensive research on geopolitical dynamics and cultural interactions.

Categories: Analysis, Europe, Geopolitics, Russia

Tags: Albania, EU, Europe, European Commission, Geopolitics, Moldova, Montenegro, NATO, Russia, Ukraine