Romania's foreign minister called Article 4 "an instrument that Romania can use" after a drone, allegedly Russian, crashed into an apartment building in Galati, wounding two civilians. NATO blamed "Russia's recklessness" for the incident as tensions escalate following Russia's invasion of Ukraine.

Article 4 allows NATO members to request formal consultations about threats to security. Unlike Article 5 which requires collective defense, Article 4 doesn't automatically commit NATO to military action. The drone attack represents the latest Russian incursion into NATO territory, raising concerns about regional stability and potential market disruptions.

Poland and Estonia previously invoked Article 4 after Russian airspace violations. The incident has already impacted defense stocks and energy markets in the region. Romania's president convened the national defense council, signaling a potential response that could further affect European security markets and economic stability.