Three of Britain's four nuclear submarines are at sea, though normally only one, the Times reported, citing a source who described the situation as "unusual". The reasons for this are still unclear, but at least one of the submarines will be armed with nuclear warheads and will conduct routine patrols. One submarine may undergo training for patrol rounds, while a third may undergo sea trials, one expert said. The fourth is undergoing maintenance. "This deployment of the majority of the British fleet represents an improvement in its operational readiness, which has been a challenge for the Royal Navy's submarine fleet in recent years. Such actions can be used to send a signal to opponents," Sky News comments. In the past, Britain called on citizens to stock up on water, food and medicine. "Medina" website X/Twitter | Send news/photo/video | Advertising on the | channel help.