Prime Minister Boris Johnson has set out his plan which he hopes will mean Russian President Vladamir Putin fails in Ukraine.
Mr Johnson will be in talks with world leaders this week, starting with Canadian Prime Minister Justin Trudeau and Dutch Prime Minister Mark Rutte on Monday. He will host the leaders of the Czech Republic, Hungary, Poland and Slovakia on Tuesday. He spoke to the French, Turkish and Serbian leaders last week.
While Ukraine has called for more aggressive help in its fight with Russian invaders, including a no-fly zone, but NATO and member states including the UK have resisted. Mr Johnson's six-point plan - which he hopes to get other world leaders behind - does not include any mention of no-fly zones, or military intervention beyond "supporting Ukraine in its efforts".