Ukrainian President Volodymyr Zelensky has cancelled all trips abroad in the coming days in light of the Russian offensive in the Kharkiv region, his spokesman Serhiy Nykyforov said on Wednesday. Zelensky was to visit Spain and Portugal at the end of the week. Russia began a ground and air assault on Ukraine’s second city of Kharkiv, in the north-east, and the surrounding region last week. In what analysts describe as one of the most perilous moments for Kiev in the war, Moscow’s forces have been able to capture several villages as they continue to bombard Kharkiv with missiles. Worries are mo…