Question: What was the nickname of the Infantry Division that the 89th Medium Tank Battalion was assigned to in November of 1951?

Context paragraphs:
25th Infantry Division (United States): The 25th Infantry Division (nicknamed "Tropic Lightning" and the "Electric Strawberry" is a U.S. Army division based in Hawaii.  The division, which was activated on 1 October 1941 in Hawaii, conducts military operations in the Asia-Pacific region.  Its present deployment is composed of Stryker, light infantry, airborne, and aviation units.

735th Tank Battalion (United States): The 735th Tank Battalion was an independent tank battalion that participated in the European Theater of Operations with the United States Army in World War II.  The battalion entered combat in Normandy in July 1944 with the 5th Infantry Division and fought across France with the 95th Infantry Division.  When reattached to the 5th Infantry Division, the 735th Tank Battalion played a key role in the reduction of the fortifications of Metz.  The battalion was also attached to the 26th Infantry Division during the Battle of the Bulge and fought the last several months of the war attached to the 87th Infantry Division.  It was inactivated in October 1945.

Type 89 I-Go: The Type 89 medium tank I-Go (八九式中戦車　イ号 , Hachikyū-shiki chū-sensha I-gō ) was a medium tank used by the Imperial Japanese Army from 1932 to 1942 in combat operations of the Second Sino-Japanese War, at Khalkhin Gol against the Soviet Union, and in the Second World War.  The Type 89B model was the world's first mass-produced diesel engine tank.  The tank was armed with a short-barrel 57 mm cannon for knocking out pillboxes and masonry fortifications, and proved effective in campaigns in Manchuria and China, as the Chinese National Revolutionary Army had only three tank battalions to oppose them, which consisted primarily of Vickers export models, German Panzer Is, and Italian CV33 tankettes.  The Type 89 was a 1920s design medium tank, built to support the infantry, and thus lacked the armor or armament of 1940s generation Allied armor; and was regarded as obsolete by the time of the 1939 battles of Khalkhin Gol, against the Soviet Union.  The code designation "I-Go" comes from the "katakana" letter [イ] for “first” and the "kanji" [号] for "number".  The designation is also transliterated Chi-Ro and sometimes "Yi-Go".

741st Tank Battalion (United States): The 741st Tank Battalion was an independent tank battalion that participated in the European Theater of Operations with the United States Army in World War II.  The battalion participated in combat operations throughout northern Europe until V-E Day.  It was one of five tank battalions (all independent) that landed in Normandy on D-Day (6 June 1944).  It landed on Omaha Beach supporting the 1st Infantry Division, but was attached to 2d Infantry Division on 15 June 1944, which it supported for most of the reminder of the war.  The battalion played a key role in blunting the northern flank of the German attack during the Battle of the Bulge in December 1944.  The 741st Tank Battalion advanced as far as Plzeň, Czechoslovakia by the end of the war.

745th Tank Battalion: The 745th Tank Battalion was an independent tank battalion that participated in the European Theater of Operations (ETO) with the United States Army in World War II.  It was one of five tank battalions (all independent) that landed in Normandy on D-Day (6 June 1944).  The battalion participated in combat operations throughout northern Europe until V-E Day.  Unlike many independent tank battalions, which were attached to different units over time, the 745th was attached to the 1st Infantry Division for the duration of its combat operations in the ETO.  It was inactivated in October 1945.

70th Armor Regiment: The 70th Armor Regiment is an armored (tank) unit of the United States Army.  It was constituted as the 70th Tank Battalion in July 1940, an independent tank battalion intended to provide close support to infantry units.  In this role, it saw action in the Mediterranean and European Theater of Operations, making assault landings and fighting with the 9th Infantry Division in North Africa, and with the 1st Infantry Division in Sicily.  The battalion supported the 4th Infantry Division on Utah Beach during the D-Day landings in France, and fought with the 4th Infantry Division through the remainder of World War II.  The 70th Tank Battalion was one of the first three tank battalions to deploy to Korea in the Korean War, where it saw significant action in, primarily with the 1st Cavalry Division.

787th Tank Battalion: The 787th Tank Battalion was organized 14 January 1943 in the United States Army, 3d Battalion, 16th Armored Regiment, within the 16th Armored Division.  Six months later, almost to the day, 16 AR Rgt.  was activated to train for combat service at Camp Chaffee, Arkansas 15 July 1943.  On 10 September 1943 the regiment was relieved from division command of the 16 AD.  The regiment was reorganized to battalion strength and redesignated 787th Tank Battalion.  Becoming an independent tank battalion they, like most of their brother tank battalions, were assigned to infantry regiments/divisions where they were most needed throughout the war.  So often was the case that as records show only one tank battalion stayed with the original assigned unit throughout the duration of WWII.

747th Tank Battalion (United States): The 747th Tank Battalion was an independent tank battalion that participated in the European Theater of Operations with the United States Army in World War II.  It was credited with an assault landing at Normandy, landing the morning after the initial D-Day landings (D+1).  The battalion participated in combat operations throughout northern Europe until V-E Day, primarily attached to the 29th Infantry Division.  After the war it was briefly engaged in occupation duties.  Redesignated the 747th Amphibian Tank Battalion on 10 July 1945, it was inactivated in March 1946.

89th Medium Tank Battalion (United States): The 89th Medium Tank Battalion was an armored tank unit of the United States Army.  It was activated in Korea in August, 1950 and in November 1951, it was assigned to the 25th Infantry Division.  The unit participated no fewer than ten campaigns, from 1951 through the Armistice in 1953 with the 26th Division.  It earned the Presidential Unit Citation and the Navy Unit Commendation.

66th Armor Regiment: The 66th Armor Regiment is the oldest armored unit in the United States Army (see Iron Knights: the United States 66th Armored Regiment, by Maj. Gordon A. Blaker), tracing its lineage to the 301st Tank Battalion which served with distinction soon after it was formed in the First World War; the 301st trained at Camp Meade, MD, where then Cpt.  Dwight D. Eisenhower was an instructor.  It has often been rumored that the 301st, the parent unit of the 66th, was first commanded by Col. George S. Patton, but this appears not to have been the case; while Patton was the first officer assigned to the Tank Corps, and while the 301st Tank Battalion was the first unit formed, Patton went nearly immediately to France to train Americans attached to Allied commands.  The 301st was the only American heavy tank battalion to have seen action in the war.  After the war, the 301st transitioned in the Regular Army to become the 66th Infantry Regiment (Light Tanks) by way of the 16th Tank Battalion.

Supporting paragraphs: 89th Medium Tank Battalion (United States) 25th Infantry Division (United States)
Answer: Tropic Lightning