US President Donald Trump has publicly rejected responsibility for a sudden reduction in internet speed across Ukraine's military communication channels earlier in the week. The drop in performance on the Starshield network severely impacted aerial defense efforts just as Russian forces launched a series of lethal missile and drone strikes.

The slowdown occurred on Tuesday evening when data rates were capped, rendering any defense systems traveling above one hundred miles per hour unable to maintain a connection. These disruptions coincided with widespread power outages affecting roughly six hundred thousand residents after critical infrastructure and military communications hubs were struck.

Addressing reporters before departing the White House, Trump asserted that neither he nor SpaceX founder Elon Musk was behind the capacity curbs. Musk previously pointed toward the United States government as the likely source of the directive, noting that the military-grade variant of the Starlink system is overseen by Washington. Subsequent media reports citing government sources indicated that the mandate originated directly from the executive branch.

The technical restrictions follow a period of escalating diplomatic friction between Washington and Kyiv over energy infrastructure targets and a contentious fuel agreement involving Russia. Ukrainian leadership resumed targeting Russian oil refineries after expressing frustration over the diesel deal, a move that drew sharp criticism from Trump following a previously brokered energy ceasefire. During a summit with European Union leaders, Ukrainian President Volodymyr Zelensky defended his nation's actions, emphasizing the necessity of self-defense against ongoing aggression.

Relations between the US administration and Kyiv have faced additional strain, with Trump describing the Ukrainian leader as particularly challenging to navigate. Despite these tensions, the US president maintained that his personal rapport with Zelensky remains positive, and expressed uncertainty over whether the service restrictions had actually occurred.

Lawmakers in the United States have responded to the network limitations by demanding a formal inquiry. A bipartisan group of senators submitted a formal letter warning that the bandwidth restrictions directly undermined defensive operations and left civilian populations vulnerable to aerial bombardments.

Meanwhile, European leaders used a Brussels summit to reaffirm their commitment to supporting Ukraine through the upcoming winter months, marking the fifth cold season since the full-scale conflict began. European Council discussions focused heavily on financial aid packages and military sustainment, with French President Emmanuel Macron assuring allies that European nations would maintain their backing despite shifting US stances. European officials are currently reviewing requests to assist with alternative satellite communication and early warning capabilities to bolster Ukraine's defense posture.

Reporting based on coverage first published by BBC News. Read the original report at BBC News.