The Thorny Path to Alliance: What 3 Countries Want to Join NATO and Why It Matters

The Alliance’s Open Door: A Beacon for Some, a Red Line for Others

In the complex and ever-shifting landscape of global security, few questions are as charged as that of NATO expansion. While the North Atlantic Treaty Organization has grown from its 12 founding members to 32, its “Open Door Policy” remains a powerful beacon for nations seeking security and stability. Currently, three specific countries—Ukraine, Georgia, and Bosnia and Herzegovina—are officially recognized as aspirants, each on a unique and arduous journey toward membership. Their desire to join NATO is not just a footnote in foreign policy; it is a central drama of the 21st century, deeply intertwined with national identity, historical grievances, and the stark geopolitical confrontation between the West and Russia.

For these nations, joining the world’s most powerful military alliance is seen as the ultimate security guarantee. However, their path is anything but straightforward. It’s a challenging road paved with demanding internal reforms, complicated by unresolved territorial conflicts, and overshadowed by the vehement opposition of Moscow. Understanding the stories of these three aspirant countries is crucial to grasping the current state of European security and the future direction of the NATO alliance itself.

The “Open Door Policy”: A Promise with Conditions

Before diving into the specifics of each country, it’s essential to understand the framework that governs their ambitions. NATO’s “Open Door Policy” is enshrined in Article 10 of the North Atlantic Treaty. It states that the Alliance can, by unanimous agreement, invite any other European state “in a position to further the principles of this Treaty and to contribute to the security of the North Atlantic area” to accede.

This sounds simple enough, but in practice, the process is a multi-stage marathon, not a sprint. A key, though not mandatory, step has historically been the Membership Action Plan (MAP). The MAP is a NATO program of advice, assistance, and practical support tailored to the individual needs of countries wishing to join. It’s designed to help them prepare for membership by meeting key requirements, which generally include:

• A functioning democratic political system based on a market economy.
• Fair treatment of minority populations.
• A commitment to resolving conflicts peacefully.
• The ability and willingness to make a military contribution to NATO operations.
• A commitment to democratic civil-military relations and institutional structures.

While Finland and Sweden bypassed the formal MAP process due to their high level of existing interoperability and democratic maturity, for Ukraine, Georgia, and Bosnia and Herzegovina, this framework remains central to their story.

Ukraine: A Nation Forged in Fire Seeking an Ironclad Shield

Perhaps no country’s desire for NATO membership has been more dramatically highlighted than Ukraine’s. What was once a topic of political debate has transformed into a matter of national survival.

From Neutrality to Necessity: Ukraine’s Shifting Stance

After the collapse of the Soviet Union, Ukraine initially pursued a policy of neutrality, even enshrining it in its constitution. The idea of joining NATO was a fringe concept for many years. The turning point began at the 2008 Bucharest Summit, where NATO leaders declared that Ukraine (and Georgia) “will become members of NATO.” However, they controversially failed to grant either country a MAP, leaving them in a strategic grey zone—a promise without a plan.

This ambiguity proved disastrous. Russia’s illegal annexation of Crimea in 2014 and the ensuing conflict in the Donbas region radically shifted public and political opinion in Ukraine. The dream of NATO membership became a strategic necessity. The full-scale invasion launched by Russia in February 2022 cemented this reality. For Kyiv, the war is a brutal, daily demonstration of why it needs the collective defense commitment of NATO’s Article 5, which states that an attack on one member is an attack on all.

What Ukraine Would Bring to NATO

Ukraine’s potential accession is no longer just about what NATO can do for Ukraine, but what Ukraine can do for NATO. The country would bring formidable assets to the alliance:

• A Battle-Hardened Military: The Armed Forces of Ukraine have transformed into arguably the most experienced and combat-proven military in Europe. They possess an unparalleled, real-world understanding of modern Russian military tactics, capabilities, and weaknesses.
• Enhanced Black Sea Security: A sovereign Ukraine, secure in its borders, dramatically alters the strategic balance in the Black Sea, a region where Russia has long sought dominance.
• Resilience and Innovation: Ukrainian forces have shown remarkable ingenuity in adapting Western technology and developing their own, particularly in drone warfare and decentralized command, offering valuable lessons for all NATO members.

The Towering Obstacles for Kyiv

“The path to NATO is irreversible… but the quickest path to peace is to provide Ukraine with all the necessary weapons.” – Dmytro Kuleba, Ukrainian Foreign Minister

Despite the moral and strategic arguments, Ukraine’s immediate membership faces two monumental hurdles. Firstly, NATO is fundamentally a defensive alliance, and admitting a country in the midst of a full-scale war would automatically trigger Article 5, potentially leading to a direct, catastrophic conflict between NATO and a nuclear-armed Russia. No member state is willing to take that step.

Secondly, NATO has a long-standing (though unwritten) policy of not admitting countries with unresolved territorial conflicts. With Crimea and parts of eastern and southern Ukraine under Russian occupation, this remains a significant barrier. The current debate within the alliance is focused on finding a “bridge” to membership—a way to provide Ukraine with concrete, long-term security guarantees that stop short of full membership until the conflict is resolved.

Georgia: The Echo of 2008 and an Unfulfilled Promise

Georgia’s journey towards NATO is one of persistence in the face of immense pressure. Like Ukraine, its aspirations were given a voice at the 2008 Bucharest Summit, and like Ukraine, it has paid a heavy price for them.

The Bucharest Summit and a Dream Deferred

For Georgia, a small nation in the Caucasus, integrating with Western institutions like NATO and the EU has been a cornerstone of its foreign policy since regaining independence. The 2008 promise of future membership was a moment of national triumph. However, the lack of a concrete MAP left Georgia vulnerable. Just four months later, in August 2008, Russia launched a war against Georgia, leading to the occupation of two of its regions, Abkhazia and South Ossetia.

Many analysts now view the 2008 war as a direct Russian response to Georgia’s NATO ambitions—a calculated move to create a “frozen conflict” specifically designed to disqualify it from future membership.

Georgia’s Persistent Reforms and Contributions

Despite this setback, Georgia has been a remarkably committed NATO partner. For years, it was one of the largest non-NATO troop contributors to the mission in Afghanistan, suffering significant casualties. It has consistently reformed its military to meet NATO standards and participates in numerous NATO exercises. The country hosts the NATO-Georgia Joint Training and Evaluation Centre (JTEC), a testament to its deep integration with alliance structures. Politically and militarily, Georgia has often done everything asked of it to advance its membership bid.

The Frozen Conflict Dilemma

The primary obstacle remains the Russian occupation of 20% of its internationally recognized territory. Admitting Georgia would present NATO with the same Article 5 dilemma as Ukraine: how to extend a security guarantee to a country whose territory is already occupied by the very adversary the alliance seeks to deter. This “frozen conflict” remains Russia’s most effective veto over Georgian accession.

More recently, concerns have also grown within the alliance about Georgia’s domestic political trajectory. Allegations of democratic backsliding and the controversial passage of a “foreign agents” law, seen as mirroring Russian legislation, have strained relations with Brussels and Washington, adding a new layer of complexity to its membership bid.

Bosnia and Herzegovina: Navigating Internal Divisions and External Influence

The third aspirant, Bosnia and Herzegovina (BiH), presents a different but equally complex case. Here, the biggest obstacle is not a hot war or a frozen conflict with an external power, but deep-seated internal political division, heavily influenced by Russia.

A Legacy of Conflict and a Path to Stability

NATO’s involvement in BiH is rooted in the tragic wars of the 1990s. The alliance’s military intervention was crucial in ending the conflict, and its subsequent peacekeeping mission (IFOR, later SFOR) helped secure the peace established by the Dayton Accords. For many in the country, particularly Bosniaks and Croats, joining NATO is seen as the final step in securing long-term stability and ensuring that the horrors of the past can never be repeated.

The Intricate Membership Action Plan (MAP) Journey

BiH’s journey has been a slow, bureaucratic one. It was invited to join the MAP in 2010, but with a critical condition: all immovable defense property (bases, barracks, etc.) had to be officially registered as state-level property. This seemingly technical issue became a major political battle, reflecting the country’s fragile, decentralized power structure.

This condition was finally deemed met in 2018, and in 2019, BiH submitted its first “Reform Programme” to NATO, effectively activating its MAP. It continues to submit these programs, which detail political, economic, and defense reforms, keeping its membership process officially on track.

The Serbian Wrench in the Works

The main roadblock is the staunch opposition from the political leadership of the Republika Srpska, one of the two entities that make up Bosnia and Herzegovina. The Bosnian Serb leadership, led by Milorad Dodik, maintains close ties with Moscow and has explicitly stated its opposition to NATO membership, advocating for military neutrality.

Because NATO accession requires a national consensus, this internal veto effectively paralyzes the process. Russia actively encourages this obstructionism, using its political, economic, and cultural influence in the Republika Srpska to sow division and keep BiH out of the alliance, thereby maintaining a foothold of influence in the Balkans.

A Comparative Glance: The Three Aspirants

To better understand the distinct challenges and statuses of these nations, a direct comparison can be helpful.

The Russian Factor: The Elephant in the Room

It is impossible to discuss NATO’s eastern expansion without focusing on Russia’s reaction. From the Kremlin’s perspective, the alliance’s growth is not a benign process of democratic consolidation but a hostile military encirclement.

NATO Expansion as an “Existential Threat”

The Russian narrative, repeated for decades, is that the West broke a supposed “promise” made at the end of the Cold War not to expand NATO “one inch to the east.” While Western leaders deny any such formal agreement ever existed, this belief is a powerful tool in Russian domestic and foreign policy. Moscow views the potential accession of countries like Ukraine and Georgia—nations it considers part of its historical and cultural “sphere of influence”—as a direct threat to its national security. It sees NATO bases and military infrastructure on its borders as an unacceptable red line.

A Strategy of Destabilization

Russia has not limited its opposition to diplomatic protests. Its actions form a clear pattern of behavior aimed at actively preventing these countries from joining NATO.

• The 2008 war in Georgia created a frozen conflict.
• The 2014 and 2022 invasions of Ukraine sought to subjugate the country and destroy its Western aspirations.
• The political support for obstructionists in Bosnia and Herzegovina undermines the country’s internal consensus on membership.

In each case, Russia’s strategy has been to create or exploit instability, knowing that NATO is reluctant to import such problems into the alliance.

Conclusion: A Question of How and When, Not Just If

The three aspirant nations—Ukraine, Georgia, and Bosnia and Herzegovina—share a common dream of joining the Euro-Atlantic security architecture. For them, NATO membership represents a final break from a tumultuous past and the only credible guarantee of a secure and sovereign future. Each has followed a different path, faced unique obstacles, and demonstrated its commitment in its own way.

Their journey highlights a fundamental tension in modern international relations. On one hand is the principle of national sovereignty—the right of every country to choose its own alliances. On the other is the reality of great power politics, where the security interests of a major power like Russia can violently override the aspirations of its neighbors. The war in Ukraine has thrown this conflict into its starkest relief.

For the NATO alliance, the question is no longer simply *if* these countries meet the technical criteria for membership. The debate has evolved. It is now a profound strategic question of how to manage the immense risks and rewards their potential membership entails. Finding a way to secure their future without triggering a wider war is perhaps the single greatest challenge facing Western leaders today. The stories of these three nations are not over; they are unfolding in real-time, and their outcome will define the shape of European security for generations to come.