United States Army Pacific
army component unit of the United States Indo-Pacific Command

The United States Army Pacific (USARPAC) is an Army Service Component Command which serves as the Army component for United States Pacific Command (USPACOM). It may also serve as a Joint Task Force headquarters. The command has forces in Alaska, Hawaii, Japan, and South Korea. It also performs missions in Southeast Asia, in the countries stretching from the Philippines all the way to Bangladesh and India.
United States Forces Korea (USFK) has had operational command and control of U.S. forces in Korea since January 2012, and USARPAC headquarters oversees the manning, training, and equipping of Army forces assigned to USFK.
Subordinate units of this command have performed humanitarian missions in places as widely separated as Haiti, Cuba, and the Middle East.
History
The first U.S. Army formation established in Hawaii was the District of Hawaii, on 25 October 1910. It was succeeded on 1 October 1911, by the Department of Hawaii, and on 15 February 1913, by the Hawaiian Department. Brigadier General Montgomery M. Macomb was the first commander of the Hawaiian Department. Headquartered in the Alexander Young Hotel, it moved to Fort Shafter in 1921. The department also started wearing the red octagon insignia bearing the yellow letter "H." The colors symbolized Hawaiian royalty and the eight sides represented the main islands of Hawaii.
Begin with the source’s own compact description: “United States Army Pacific” is army component unit of the United States Indo-Pacific Command. The dossier treats that line as a proposition to test through United, States and Army, not as a finished interpretation.
Why this record matters
The phrase “army component unit of the United States Indo-Pacific Command” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Sep 2, 2026. The linked authority identifier is Q875037. 1 of 3 selected statements include explicit references; 2 carry qualifiers and 1 use preferred rank. The first chronological checks are 2012, 1910, 1911 and 1913.
A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
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Three-step research path
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- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
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This entry incorporates text from “United States Army Pacific” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.