Well, most of this is off the top of my head. The positive view of the American invasion of Panama, or Operation Just Cause, is that “Gen.” Manuel Noriega (AKA Pineapple Face) was a notorious prick. For he had used murder, goon squads posing as a militia, small “commando” units in the Panamanian Defense Forces (PDF) to assassinate his opponents (F-8), and had a long series of secret deals with criminals, terrorists, and dictators both hostile and friendly to the US and was up to his neck in the cocaine trade and gun running. Elections were held in which he clearly lost, but either he refused to acknowledge them or faked the results in his favor. I can’t recall exactly, but he roughed up the winning candidate and showed him publicly beaten on TV. He was also making some critical errors which would give the US a nice pretext to invade. As he “turned” on the US and the US turned on him (largely over drugs), he began to intimidate US military personnel and several were roughed up. And one man, a US citizen living in Panama, was arrested after PDF teams zeroed in on his transmissions (he was later rescued by the Delta Force).
In any case, the US invasion deposed Noriega and brought actual democracy to a nation that knew little of it.
A more skeptical view was that the US indeed was supporting dictators there, including Manuel’s predecessor, Torrijos, and that the US, specifically the CIA, had cozied up to Noriega during the Nicaraguan War and dolts like Oliver North were almost falling in love with him (This is in the 1980s, right before Marine COL North would be caught up in the Arms for Hostages Scandal that plagued the final years of the Reagan Administration). And that the CIA had a long file on what a sick bastard Noriega was and the methods he used to quell not only communists, but members of the democratic opposition to his rule. For instance, it’s rumored that he was a pedophile that raped children, and that his F-8 unit would torture their victims by severing their tendons, then sodomizing them before death. His prisons were also notorious for meeting out special punishments to political prisoners.
The US invasion was also not tidy. While most of the dead were PDF, civilians were also killed. I heard the US Army Rangers also had numerous “problems” and several were killed in friendly fire incidents as the trigger happy dipshits fired on each other shortly after landing at night. Some also object to the way that the PDF barracks were pretty much disintegrated by fire from “Spectre” C-130 gunships, probably killing hundreds with no chance of surrender. But all in all, I think it’s hard to say that Panama was not better off with Manuel sitting in a Florida penitentiary, until recently when he was sent to France to answer for money-laundering charges. He unsuccessfully fought extradicion on the grounds that he was considered a “POW” by the US. But the court found against him and now he’s going to live out his life there, but not on the French Riviera.
As far as “Urgent Fury,” the invasion took place ostensibly when the Grenadian Army staged a communist coup, supposedly with the help of the Cuban intelligence service, and overthrew the elected president. They later killed him and seemed to become increasing violent and unstable. This of course gave the US a pretext to invade since hundreds of US students attended medical schools there as they often do in the Caribbean and Latin America. Of course, the real reasons (and I’m not saying that US students weren’t in danger, but I’m not sure any real evidence existed that they were) is that the Cuban “construction workers” were building a large airfield said to be designed to extend Cuban influence in the region, and the Beirut barracks were bombed inflicting over 300 Marine deaths, which was both catastrophic and embarrassing. Mainly because the Reagan Admin never really retaliated against the parties involved and there’s a conspiracy theory put forth by an ex-CIA agent that his inquiry was deliberately squashed, and he was falsely charged with murder in order to cover up a bizarre, unlikely cabal of Iran (via Hezbollah), a Lebanese Christian Militiaman (who allegedly died under CIA custody), and even Israel - as none of the above parties wanted the US in Lebanon and all basically collaborated to one form or another to get rid of the US.
In any case, the US invasion of Grenada was marred by a tragic chopper crash due to jittery pilot nerves, hard fighting by Cuban ‘construction workers’ that acted more like combat engineers, four SEALs drowning while another SEAL team that ignominiously ditched their gear and went “escape and evasion,” and other problems resulting from a hastily thrown together plan. Both operations were a double-edged swords as they were both marred by poor intelligence, inter-service rivalry, and the Pentagon’s propensity to “showcase” their commando “superstars,” which in both cases led to needless deaths. For instance, the US Army’s elite surgical counter-terrorists in 1st Special Operations Force Delta were sent in to take the Grenadian airport which was like asking a surgeon to use his scalpel to cut down a tree. They were not armed for such a mission and were out of practice for such light infantry roles. The SEALs in Panama also had problems attacking an airport (you think they might have learned! :D) as the supposed lightly defended aerodrome actually had armor and infantry --dug in…
On the plus side, the US military did learn some valuable lessons on command and control, planning and intell, and communications as a Ranger unit had to call in air-strikes using a lieutenant’s credit card because no one thought the Army needed to talk to the USAF in 1983 apparently. Also, doctrine was revised and some confidence was regained after the Vietnam nightmare was finally put behind the all volunteer military…