This Sunday marks 43 years since Operation Urgent Fury. In October 1983, a Marxist coup on Grenada put American medical students in danger. The prime minister was assassinated. A shoot-on-sight curfew followed. Washington moved fast.

The island was taken by force.

Army Rangers hit Point Salines airfield before dawn. A low-level parachute drop put them on the runway in seconds. Marines stormed Pearls Airport on the far side of the island. Navy SEALs and Delta operators were on the ground too. It was the first big joint operation since Vietnam.

Things did not go by the book.

Planners thought the students were in one place. They were spread across three campuses. At True Blue, Rangers pulled out 138 students fast. But more than two hundred were still trapped at Grand Anse. SEALs at the governor-general’s residence got surrounded. Marines broke through with tanks to pull them out.

In the end, the mission worked.

Nearly six hundred Americans came home. About 120 foreign nationals were evacuated with them. The operation cost nineteen American lives. But it exposed real cracks in how the services fought together.

Those lessons still shape special operations.

Grenada helped drive the reforms that created U.S. Special Operations Command in 1987. Today’s joint raids — hostage rescues, takedowns, extraction missions — run on that same playbook. When operators from different services hit one target together, a tiny island in the Caribbean is part of the reason they can.

Read the operators’ war.

Dr. W.C. Ballinger writes the missions behind the headlines. The Descending Eagle series follows ex-SOF and agency operators into the world’s worst fights. Every book is free on Google Play — ebook and audiobook. Get the whole series free here. Prefer audio? Start with Descending Eagle.