National Security Adviser Jake Sullivan made an unannounced visit to Kyiv on Friday, where he met with Ukrainian President Volodymyr Zelensky and other top officials. Sullivan underscored US support for the Ukrainians “as they defend their sovereignty and territorial integrity,” National Security Council spokeswoman Adrienne Watson said in a statement. In Kyiv, Sullivan announced an additional $400 million security aid package to Ukraine. It includes refurbished T-72 tanks and drones, along with refurbished surface-to-air missiles. He also confirmed that the US will continue to provide financial and humanitarian aid to Ukraine: “The United States will be with Ukraine for as long as it takes in this fight. There will be no wavering, no flags, no flinching in our support as we move forward.” Sullivan added that the war could easily end if Russia chose to stop the fighting and end its occupation. “And that’s exactly what he should do from our perspective,” he told reporters.