Tensions between northern and southern European countries have resurfaced amid differing perspectives on security, migration, and regional priorities, underscoring a long-standing geographic and political divide. The issue came into sharp focus last weekend when Spanish Prime Minister Pedro Sánchez criticized some European states as “selfish” following their proposals to isolate Spain in response to a surge of migrants crossing into Ceuta, a Spanish enclave in North Africa. Sánchez’s remarks drew discomfort from some allies, partly because of his own record on defense spending and national interests.

The core of the divide stems from contrasting threat perceptions. Northern European countries remain primarily focused on Russia’s actions and military posture, viewing Moscow as an enduring security challenge. This has translated into sustained pressure for defense increases and a solid collective response through alliances such as NATO. Southern European nations, including Spain and Italy, while mindful of Russia, experience different priorities shaped by geography and climate. Issues like climate change, which disproportionately impacts southern latitudes—evidenced this summer by devastating wildfires in Spain—are increasingly seen by some southern leaders as security concerns deserving defense-related investment. Sánchez, for example, has proposed recognizing climate efforts as part of defense spending.

Disagreements over defense commitments are evident in recent policy debates. Italy and Spain have only recently met NATO’s 2 percent GDP defense spending guideline, and Italian public opinion reflects skepticism toward further increases. Italian Prime Minister Giorgia Meloni, despite generally adopting a hawkish stance on Russia, recently opposed deploying troops to a post-conflict Ukraine. Greece stands as a notable southern exception with comparatively robust defense expenditures, while France’s position remains less clearly aligned along the north-south divide.

Compounding these disparities is the persistent challenge of irregular migration arriving via the Mediterranean, making southern border states natural entry points. Efforts to manage migration risks require cooperative European action to support border security and stabilize conditions in African countries from which migrants originate. However, demographic trends in Africa—such as high fertility rates in countries like Chad—are expected to sustain migratory pressures, with potential repercussions for European unity. Should southern borders prove difficult to control, northern states might push for stricter internal controls within the Schengen Area, threatening the freedom of movement that underpins the European project.

Analysts note that the north-south divide in Europe mirrors broader historical and global patterns where latitude influences culture, economy, and political outlook. Unlike strong centralized states or nations with pronounced national identity traditions, Europe’s comparatively weaker integration heightens the risk that these regional differences could deepen. The war in Ukraine has intensified this divergence, reversing a prior trend toward economic convergence between northern and southern members.

With southern European countries like Italy and Spain constituting a significant portion of the European population, their security priorities will materially affect the continent’s future. The potential shift from an east-west to a more pronounced north-south cleavage, grounded in differing threat assessments rather than historical sectarianism, raises questions about the cohesion of the European Union’s defense posture. While the north tends to downplay these divisions to avoid stereotyping the south, and the south resists appearing less European, the entrenched differences pose a complex challenge for policymaking and European unity going forward.