I suspect Trump may not care about money much, but at the end of the life he wants to be some historical figure. Similar motive was for Putin to invade Ukraine.
Except for the little detail that Ukraine doesn't have a history of launching rockets into allied nations, invading embassies and holding staff hostage, unprovoked attacks against allied interests and ships in international waters and massacring it's own people for the crime of speaking out agains their government.
