If anyone was paying attention during Trump 1.0, they’d realize that his way of fighting has been well established. Instead of fighting ISIS directly, he just had the leaders killed off, which made it difficult for them to stay relevant as a terrorist force in the region. This was done under Trump’s first term, but less ambitious compared to the second term.
In video game terminology, this would be like taking out the final boss at the beginning of the game, then completing various side quests afterwards to tie up any loose ends. Other countries do not like this, because they operate on the idea that you should first defeat their armies (beginner levels), and then have endless negotiations and smaller victories (side quests), before defeating the leader (final boss), but given the might of the US military and tech available, that would be dumb and result in way more casualties. Trump’s method minimizes casualties while giving maximum reward.