Democratic lawmakers are calling for an explanation from the Pentagon after reports surfaced about an order to pause offensive cyber operations against Russia during sensitive negotiations aimed at ending the war in Ukraine.

The decision to halt such operations, which disrupt rival computer networks, is not unusual in the context of diplomatic efforts but has raised concerns among lawmakers. The order was first reported by The Record and later confirmed by two anonymous sources familiar with the matter.

Senate Minority Leader Chuck Schumer criticised the move, calling it a 'critical strategic mistake' and arguing that 'the best defence is always a strong offence', especially in cybersecurity.

Representative Adam Smith, the top Democrat on the House Armed Services Committee, also demanded that the Pentagon provide Congress with details regarding the scope of the pause and its potential impact on US allies. He further questioned whether a risk assessment was made before the decision.

The Pentagon declined to comment on the matter, citing operational security concerns. The pause in cyber operations comes amid rising tensions surrounding President Donald Trump's recent dealings with Russia, including a public clash with Ukrainian President Volodymyr Zelenskiy.

Trump has shifted US policy by engaging in talks with Moscow and openly criticising Zelenskiy, suggesting that America could pull its support for Ukraine if the war does not end soon.