The West must do more to help Ukraine in its effort to resist Russian aggression, British Prime Minister Boris Johnson has said. Johnson made the remarks in London on Tuesday while hosting a meeting of the Joint Expeditionary Force (JEF), an alliance of northern European nations including Denmark, Finland, Estonia, Iceland, Latvia, Lithuania, the Netherlands, Sweden, and Norway. The UK government on Tuesday announced sanctions against a further 350 Russian individuals and entities, bringing the UK in line with measures already announced by the European Union. Addressing the JEF meeting via video-link, Ukrainian President Volodymyr Zelensky said he welcomed Western sanctions but they “are not enough” to end the Russian aggression, calling for a full trade embargo. He also urged the JEF countries to supply more weapons, as the shipments of supplies from the UK and other nations were being rapidly used up. Johnson told Zelensky, “You challenge us, quite …