Portugal

Unlikely (roughly 5–10%) that Portugal will be directly involved in significant armed conflict within the next three years; the main pathway is low-probability NATO escalation rather than domestic violence.

Portugal is very likely to remain peaceful over the next year. Expect continued NATO/EU readiness activity and maritime/air policing, plus incremental modernization. The most plausible security pressures stay below the armed-conflict threshold: cyber espionage and ransomware risk, disinformation, and critical-infrastructure protection, alongside episodic protests/strikes and weather-related emergency measures.

Over five years, risk could rise modestly if the North Atlantic becomes more operationally contested and Portugal expands enabling roles (maritime patrol, undersea infrastructure protection, air/missile defence, logistics). Domestic political fragmentation and public-service strain may complicate crisis management but are unlikely to generate organized armed violence. The modal outcome remains deterrence, resilience investment, and limited deployments rather than direct war involvement.

Scope and definition This estimates the chance that within three years Portuguese state forces engage in sustained lethal combat on Portuguese territory (including Azores/Madeira) or as a major expeditionary belligerent. Routine NATO deployments, peacekeeping, isolated terrorism, civil unrest, or cyber incidents without sustained combat are excluded.

Threat drivers Alliance exposure remains the dominant driver. Portugal’s strategic value is Atlantic access, logistics, maritime patrol/ASW support, and protection of sea lines and undersea infrastructure. If a NATO–Russia confrontation broadened into the North Atlantic, Portuguese forces could be tasked with convoy protection, air and missile defence, and maritime security in ways that increase the chance of direct contact.

Hybrid pressure is the more probable near-term threat: cyber espionage against public administration and critical infrastructure, influence operations, and criminal-state nexus activity. Reporting on increased nation-state cyber targeting in Europe, including references to activity affecting Portugal, supports elevated hybrid risk but does not by itself indicate a shift toward kinetic conflict.

Terrorism risk exists primarily in the lone-actor/soft-target category. Portugal’s raised national threat posture and travel-security reporting point to vigilance needs, but the observed pattern is not consistent with an organized armed campaign capable of sustained combat.

Resilience and systemic firebreaks Portugal’s strongest stabilizers are EU/NATO membership, nuclear deterrence dynamics that raise the cost of attacking alliance territory, professional security institutions, and the absence of armed separatist movements. Geography reduces exposure to immediate land-war spillover. Economic and governance challenges and episodic strikes can stress service delivery, but current indicators align with a functioning state capable of maintaining order.

Net assessment New material largely reinforces the baseline: Portugal’s NATO enabling role and hybrid targeting profile are salient, while structural drivers of domestic armed conflict remain weak. The three-year risk stays low, with tail risk concentrated in a wider NATO war scenario rather than Portugal-specific triggers.