President Volodymyr Zelensky warned that Ukrainian intelligence has detected signs of an imminent massive Russian strike, urging citizens to remain vigilant and take shelter whenever possible.Speaking during a media briefing alongside Irish Prime Minister Micheál Martin on Wednesday, Zelensky said Ukraine’s intelligence services have gathered relevant data pointing to the threat. JOIN US ON TELEGRAMFollow our coverage of the war on the @Kyivpost_official.“Today I ask our people in Ukraine to be especially careful,” Zelensky said, “to protect themselves, their families, their children, to be sure to use shelters and to heed air raid alert signals across Ukraine.”He continued: “We know that [Kremlin leader Vladimir] Putin has been preparing a massive strike on Ukraine for some time now. Tonight, this is exactly the threat we face.” Zelensky said he would return to Ukraine immediately following the briefing.Visit coincided with EU presidency talksThe warning came during Zelensky’s visit to Ireland, where he met with European Council President António Costa and Martin to coordinate Ukraine’s priorities for Ireland’s upcoming presidency of the Council of the European Union.The leaders discussed practical steps to accelerate Ukraine’s path to full EU membership and coordinated further support for Kyiv, along with additional sanctions pressure on Russia.“Without Ukraine, without Ukrainian experience and security expertise tested in modern warfare, it is simply impossible today to guarantee security, especially when it comes to air defense and maritime security,” Zelensky said, underlining Ukraine’s importance amid Russia’s hostility against NATO.