Trump was extraordinarily lucky here, the Maduro regime was wholly unprepared and he was immediately extracted from the county; he can claim "mission accomplished", parade Maduro in front of the world media and watch from afar the PSUV leadership tear themselves appart.

But the dice Trump rolled could have easily fell onto a well prepared Maduro regime, which could have downed a few Blackhawks, torpedoed the ship from which they launched, captured and killed a few dozens to a few hundreds US service men, paraded them in the streets of Caracas and used them as human shields protecting the main military targets etc.

I.e, Trump could have easily committed US to a long term war and a ground invasion, without Congress authorization or allied support, and with Iraq or worse long term results.