War tensions escalated on NATO’s eastern flank as a Russian fighter jet briefly violated Estonia’s airspace while the Estonian Navy attempted to detain the sanctioned oil tanker Jaguar, linked to Russia’s ‘shadow fleet.’ The Estonian authorities deployed aircraft and a patrol boat to intercept the vessel, which refused to comply with orders to alter its course. Estonian officials condemned the incident as unacceptable and called for tougher sanctions against Russia following its continued maritime provocations in the region.