On a serious note wars are threat to life and at such there should be limits to it other than fueling it to the extreme, I can't really say much about Trump decisions authorizing such orders inorder to increase and worsen the situations. But of a truth the allies of Israel have been an hindrance to them and I think he's doing what's right in making sure he brings victory to them even if it means taking down the Palestine, but all of this ain't helping more especially embracing peace should be the approach but if the Palestine would refuse to surrender then I don't think I have anything to question about his actions towards it.
Trump did little to nothing with this weapon that was sent to Israel; he might have a hidden agenda, but on a clear note, what was done was to complete a deal, which Biden did during his tenure before leaving office. Payment and agreement for those weapons have already been reached; why he delayed them is best known to him, so it could be said that it was just for Trump to clear that out from their store and send it to those who already made payment for them.