In the center of the conflict, the Chancellor needs to fulfill the US President in Washington. Friedrich Merz has to do diplomatic precision work.
https://www.spiegel.de/politik/deutschland/iran-friedrich-merz-und-donald-trump-die-millimeter-mission-des-kanzlers-und-der-krieg-in-iran-a-11b69c01-3643-44f8-9a07-4182dd0fa5e1#ref=rss