A dispute over Ukraine’s access to Starshield has raised questions about who controls the service and who is responsible for its restrictions. US President Donald Trump, SpaceX chief Elon Musk and Ukrainian President Volodymyr Zelenskyy have offered different accounts of the changes. The disagreement comes as Ukraine relies on satellite communications to support military operations and defend against Russian attacks. Ukrainian officials say restrictions on Starshield have disrupted some drones used to strike targets behind Russian frontlines.…