Threat Actor Capability Profiles

Russia remains the principal military threat to NATO. Despite attrition sustained in Ukraine, Russia retains the largest nuclear arsenal in the world and is actively reconstituting and expanding its conventional forces. It continues to invest in asymmetric, cyber, and strategic capabilities.

China is undergoing the most comprehensive military modernisation in its history. The PLA is expanding its nuclear arsenal rapidly, fielding advanced air, naval, and space capabilities, and developing a world-class cyber capability. NATO has identified China as a systemic challenge whose stated ambitions and coercive policies challenge Allied interests.

Iran poses a significant regional threat through its ballistic missile programme, proxy networks (Hezbollah, Houthis, Iraqi PMF), and expanding drone capabilities. Iran's nuclear programme is a major proliferation concern. It provides weapons and technology to Russia for use in Ukraine.

North Korea possesses nuclear weapons and is advancing its ICBM capability. It is assessed to have supplied significant quantities of artillery ammunition and ballistic missiles to Russia for use in Ukraine. Its conventional military is large but aging. The principal threat is nuclear miscalculation and continued proliferation.

Belarus under Lukashenko has become effectively a military extension of Russia. It hosts Russian tactical nuclear weapons (since 2023), provides forward basing for Russian forces, and its territory was used as a launch pad for the 2022 invasion of Ukraine. It represents a direct threat to NATO's eastern flank.

Hezbollah is Iran's most capable and strategically significant proxy force. At its peak it possessed the largest non-state rocket and missile arsenal in history — estimated at 130,000–150,000 rockets and missiles — and operated a precision-guided missile programme that threatened Cyprus and Israel with pinpoint strikes. The September–October 2024 Israeli operation killed Secretary-General Hassan Nasrallah and most of the senior leadership, destroyed significant missile stocks, and severely degraded operational coherence. Hezbollah remains a potent organisation capable of reconstitution.

The Houthis (Ansar Allah) control northwest Yemen including Sanaa and the Red Sea coast. Since October 2023 they have attacked over 90 commercial vessels and conducted strikes on Israel using ballistic missiles, cruise missiles, and drone swarms — demonstrating the most advanced military capability ever exercised by a non-state armed group. Their attacks have disrupted ~15% of global shipping traffic, forcing major rerouting around the Cape of Good Hope at an estimated $10B+ in additional shipping costs.

Hamas's Izz ad-Din al-Qassam Brigades executed the October 7, 2023 attack — the deadliest terrorist attack since 9/11 and the largest single-day killing of Jews since the Holocaust — demonstrating sophisticated operational planning, combined arms execution, and intelligence penetration of Israeli defences. Hamas possesses an extensive rocket arsenal, underground tunnel network, and increasingly capable long-range missiles supplied by Iran. Israel's 2023–2024 Gaza campaign has significantly degraded Hamas but failed to eliminate its command structure.