Ukrainian President Volodymyr Zelensky’s invitation for Prime Minister Sanae Takaichi to visit Kyiv has created a diplomatic dilemma for the Japanese leader, who is under pressure to show firmer support for Ukraine without further antagonising Russia.Zelensky extended the invitation through Eisuke Mori, speaker of Japan’s House of Representatives, during his visit to the Ukrainian capital earlier this week.Mori, who helped establish the cross-party Japan-Ukraine parliamentary friendship group...