World War II disrupted science fiction fandom through military service, paper shortages, travel limits, personal upheaval, and the suspension of Worldcon from 1942 through 1945. But fandom did not vanish; it adapted through correspondence and postwar rebuilding.
Table of Contents

| Quick fact | Information |
|---|---|
| Period | 1939-1945 global war context |
| Worldcon gap | No Worldcon from 1942 to 1945 |
| Main pressures | War service, travel limits, paper shortages, disrupted lives |
| Postwar effect | Renewed conventions and fan publishing |
Disruption
Fans entered military service, moved, lost contact, or had less time and paper for fan publishing. The war changed what could be organized and how quickly.
Continuity
Correspondence, memory, and smaller-scale fan activity helped preserve connections. Fandom was damaged but not erased.
Postwar Rebuilding
After the war, conventions and fan publishing resumed with new energy, older memories, and changed social conditions.
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