It's explicitly about oil, right?
Wikipedia [1]:
> Andrew McCabe quotes Trump as saying of Venezuela "That’s the country we should be going to war with, they have all that oil and they’re right on our back door.”
> In June 2023, Trump said at a press conference in North Carolina, "When I left, Venezuela was about to collapse. We would have taken over it, we would have kept all that oil."
PBS [2]:
> "We want it back," he added. "They took our oil rights — we had a lot of oil there. As you know they threw our companies out, and we want it back."
[1] https://en.wikipedia.org/wiki/Proposed_United_States_invasio...
[2] https://www.pbs.org/newshour/politics/watch-we-want-it-back-...
Venezuelan oil is kind of crappy. I would say the two biggest reasons for this are 1. Trump wanting migrants from Venezuela to stop and 2. Ending Venezuelan support for Cuba. Oil is definitely one of the reasons though.