Modern Era, United States, Infantry
This second-pass battalion page ties each battalion icon more directly to the parent regiment's established story. Until a battalion-by-battalion lineage research pass is completed, the copy below should be read as regiment-specific context rather than as a final battalion lineage sheet.
This entry now anchors the battalion page in the regiment's origin or defining early identity, giving the 1st Battalion slot a more specific historical frame than the first scaffold pass.
The 31st Infantry Regiment, the Polar Bears, was organized in 1916 for duty in the Philippines. From the beginning its history was tied to the Pacific and to the Army's forward-deployed role in Asia rather than to the older frontier tradition of many lower-numbered regiments.
The 2d Battalion entry uses the regiment's middle or operational arc to give the page a clearer sense of how the parent unit developed over time.
In World War II the regiment fought in the defense of the Philippines and suffered the ordeal of Bataan and captivity after the fall of the islands. Its later twentieth-century history continued in the Pacific-oriented Army, including service in Korea and later through battalions that preserved the Polar Bear identity in Alaska and other assignments.
The 3d Battalion entry now carries the regiment into its later or enduring modern identity, tightening the page around the way the lineage is remembered in the modern Army.
The 31st Infantry is therefore one of the clearest examples of a regiment shaped by the Pacific century: born for overseas service, blooded in the Philippines, and remembered for endurance in some of the hardest campaigns and captivity experiences of the modern U.S. Army.
Research note: This second pass replaces the generic scaffold text with regiment-specific context drawn from the parent regiment page. Dedicated battalion-level lineage research is still deferred to a later pass.