Since the onset of Russia’s full-scale invasion of Ukraine in 2022, Ukraine’s airspace has been closed and its roads have been unsafe for travel. Thus, trains have become the primary means of access. Over the past three years, numerous foreign leaders who have wanted to show their solidarity with Ukraine have taken trains to meet with President Volodymyr Zelensky in the capital Kyiv. The 10-hour overnight train journey that takes them from southeastern Poland to Kyiv has come to be known as “iron diplomacy” and acts a symbol of commitment.