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The Joint Strategic and Operations Group, also known as the Joint Strategic Plans and Operations Group (JSPOG), was a committee that was instituted during the Korean War to facilitate communication and interaction between the various United States armed forces.
It played a significant part in both the Battle of Inch'ŏn, and Operation Chromite during the Korean War.
Nearly three years elapsed before General MacArthur took cognizance of this directive, and then, on 20 August 1949, he established a Joint Strategic Plans and Operations Group (JSPOG) under the Assistant Chief of Staff for Operations (G-3) of GHQ Far East Command and charged it "to assist and advise the Commander-in-Chief, Far East, on matters pertaining to his exercise of unified command over Army, Navy, and Air Force forces, allocated to the Far East Command. #23
The JSPOG comprised three Army, three Navy, and two Air Force officers, and it was frequently cited as evidence that GHQ was a joint staff. But it was apparent both from the statement of its functions and from the small number of its assigned personnel that the JSPOG could not serve in lieu of a joint staff contemplated by the JCS.#24
Even at this early date (July 4), he envisioned not only a ship-to-shore assault on some east or west coast seaport, preferably Inch'ŏn, but also a drive inland to cut enemy communications and envelop Sŏul.
The Joint Strategic Plans and Operations Group (JSPOG) headed by Brigadier General Edwin K. Wright, U.S.A. (FECOM G–3) was then drawing up the outline of such an amphibious attack plan.
Code-named Operation BLUEHEARTS, it called for a landing in the Inch'ŏn area by a Marine RCT and an Army assault force in coordination with a frontal attack from the south by the 24th and 25th Divisions. Inch'ŏn had been designated the objective area for the amphibious assault, and the date would depend upon the availability of troops for the combined operation.