Germany fought Russia/USSR and France in both world wars. Both Italy and Japan where aligned with Third Reich in WW2, but fought against Germany in WW1. Italy did align itself with the German Empire in the years leading up to WW1, so that is the best answer out of all of these. However none of them are truly correct.
Executive branch (president), Legislative branch (senate and house of representatives), and Judicial branch (supreme court and lower courts)
The emperor was given the power to veto the pope’s appointment of bishops.
Henry V was recognized by the church as the lawful emperor.
The emperor recognized the church’s authority to appoint bishops.