POW/MIA

By Gerald Whitcombe, military records archivist · Updated 4 June 2026

Few subjects in military history carry the weight of the letters POW and MIA. Behind them are people who were captured, who vanished, or whose fate stayed unknown for years. This page explains how that experience is documented — and how researchers trace it through the records.

What POW and MIA mean

POW — prisoner of war — describes a combatant captured and held by an opposing force. MIA — missing in action — describes someone whose whereabouts and fate are unknown after an engagement: they may have been killed without their remains being recovered, captured without record, or lost in the confusion of battle. The two categories overlap, because a soldier first reported missing is sometimes later confirmed as a prisoner.

The documentary trail

Captivity generated its own paperwork, and that paperwork is how the missing are often found:

• Capture and registration cards — recording a prisoner's name, unit and the camp holding them.
• Camp rolls and correspondence — lists of those held, and the letters that sometimes passed between captivity and home.
• Casualty and missing returns — the unit's record that a soldier had not been accounted for.
• Repatriation and exchange lists — documenting those returned, and by elimination, those who were not.

Reading these against the unit's own record — the method set out in our guide to researching military records — is how a "missing" entry is often resolved into a documented fate.

Accounting for the missing

The work of accounting for the missing continues long after the guns fall silent. Recovery teams, forensic identification and archival cross-referencing have given names back to remains decades after a conflict ended. Each identification rests on exactly the kind of evidence this site emphasises: contemporary records matched carefully against physical findings, with no shortcuts and no assumptions.

Remembrance and research

For families, a POW or MIA record is rarely an abstraction — it is the difference between an open wound and an answer. For historians, the same files test the official account of a campaign against the reality of who came back and who did not. Both purposes are served by the same careful research, and both connect to the broader study of military history and the conflicts, such as the Civil War, where the missing were counted in their thousands.

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