President Donald Trump is set to arrive in France on Monday for a G7 summit, where he will meet with a diverse group of world leaders who share at least one common experience: all have either been the target of his ire or have navigated profoundly awkward diplomatic encounters with the U.S. leader.Several G7 leaders have faced Trump’s wrath for questioning his chosen war with Iran. Others have clashed with him over tariffs. The leaders of Japan and Germany, in particular, have endured clumsy asides from Trump regarding dark moments in their countries' histories.Trump’s criticism of British Prime Minister Keir...