A mere hours after President Donald Trump claimed that Vladimir Putin had agreed to stop attacking Ukraine because of the cold weather there, the Russian dictator rained down more than 100 drones and a ballistic missile on the neighbor he is still trying to take by force.

US President Donald Trump insisted on Thursday that he had brokered a weeklong ceasefire in the Russia-Ukraine war — citing “extreme cold” weather as the reason.

Ukrainian President Volodymyr Zelenskyy was skeptical about Putin’s readiness for such a step as Russia’s all-out invasion, which began on Feb. 24, 2022, approaches its four-year anniversary next mont...