The G7 leaders are huddling in Italy for a three-day summit dominated by the wars raging in Ukraine and Gaza, in addition to the growing trade and security tensions with China. Ukrainian President Volodymyr Zelensky was invited to attend the gathering of the Group of Seven, which starts on Thursday at the luxury resort of Borgo Egnazia to the south-east of the city of Bari in southern Italy’s Apulia region. This could be Joe Biden’s final G7 summit, coming five months before he faces his predecessor and right-wing Republican rival Donald Trump in a tense US presidential contest. European leade…