There's a marvelous 49-page article:
The June 25, 1950 North Korean Invasion of South Korea: The Rest of the Story
by Henry Mark Holzer
which illuminates the axes of action we might posit here.
Kim Il-sung is eager to invade and convinces Stalin to contribute armor and Mao, bodies. Each has trained an arm of the North Korean military so it's a go.
Truman has kept his MacArthur in the dark--note that Forrestal flew for balking at the big defense appropriation. Truman sees the chance for such in an attack. Acheson omits Korea from the Press Club description of the defense perimeter--much as April Glaspie told Saddam Hussein that we considered Kuwait a regional matter. Translation: oh, please, please, please attack.
Acheson was with Rostow creating the Commission in Donald Gibson's surmise. You've mentioned the Wise Men. Greg enumerates Bundy's sinister betrayals, and of course Bundy was a Dulles man while William married Acheson's daughter.
We see in Preparata the role of Montagu Norman director (1922-1944) Bank of England in Conjuring Hitler (2005). While in Thy Will Be Done (1994) Colby & Dennett illustrate the multimedia Avatar-like invasion and destruction of the Third World.
Removing Kennedy as a business decision executed by designated professionals in compartmentalized fashion with appropriate trappings for deniability and deception.
The business existed long before, and persists through this day. Nothing ad hoc or ego-centric about it, no mastermind, no agency per se.
Douglass' miasma of the Unspeakable to be sure. The Zen that can be named is a knock-off sold in Times Square.
In Shooter (2007) from Stephen Hunter, Point of Impact (1993) presents an on-going congressional-military-intelligence-corporate beast using a Cheney-surrogate rather than Nelson Rockefeller.
Suggest a resetting of the table with CIA (Dulles, Angleton, Harvey et al) as the armature for an action initiated or approved elsewhere wherein the American dove is removed as the Russian opposite numbers set in motion the Brezhnev coup placing Nikita Sergeyevich under house arrest.
And the band played on.
On the basis of a game plan created in the series of Big Three conferences from the outcome of the predictable war arising from the coals banked by Versailles where the Brothers Dulles interned.
Truman was riding the tiger in 1947, then with the secret plausible denial covert action concession in 1948, 1949 with another National Security Act and James Forrestal's removal.
Ike would warn in 1961. Truman would lament in December 1963. In the interim Kennedy would fall under the machine.
Any identification we could make would be by way of the blind men and the elephant (owned by an anonymous holding group).
Dulles was the trunk, sniffing out things.
Harvey might've been a foot. Stomping.
I know what part I would reserve for Bundy, but for reasons of decorum decline to name it.