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Security. Cooperation with United States. P/YB/113/AA1 Security ULTRA - USA, SEAC...

Catalogue reference: HW 69/9

What’s it about?

This record is about the Security. Cooperation with United States. P/YB/113/AA1 Security ULTRA - USA, SEAC... dating from 1942 Jul 07 - 1945 Aug 05 in the series Government Code and Cypher School: Sigint Board and predecessors: Correspondence.... It is held at The National Archives, Kew.

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Full description and record details

Reference

HW 69/9

Date

1942 Jul 07 - 1945 Aug 05

Description

Security. Cooperation with United States. P/YB/113/AA1 Security ULTRA - USA, SEAC [South East Asia Command] etc, OSS [Office of Strategic Services], FEA [Foreign Economic Administration], etc. P/YB/113/AA2 Security USA - North Africa. P/YB/113/AA3 Security USA in North Africa. P/YB/113/AA4 Security USA - Passing of Special Intelligence to USA, memo to Chiefs of Staff. YB/113/G1 Security USA - Information for the US. YB/113/G2 Security USA - Walrus Code and One Time Pads. YB/113/G3 Security Training Courses for 'Y' Personnel (asking for papers to be sent to USA). YB/113/G4 Security USA W/T I [Wireless Telegraphy Intelligence] Units to go to Cheadle. YB/113/G5 Security Interservice W/T Security Committee (USA Representation)

Held by
The National Archives, Kew
Former department reference

P/YB/113/AA1-4 & YB/113/G1-5

Legal status

Public Record(s)

Access conditions

Retained Until 2004

Closure status

Open Document, Open Description

Subjects
Topics
Asia
Radio and television
Intelligence
Americas
Communications
Record URL
https://beta.nationalarchives.gov.uk/catalogue/id/C11204090/

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Series information

HW 69

Government Code and Cypher School: Sigint Board and predecessors: Correspondence...

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View series description

Catalogue hierarchy

Over 27 million records

This record is held at The National Archives, Kew

17,110 records

Within the department: HW

Records created or inherited by Government Communications Headquarters (GCHQ)

18 records

Within the series: HW 69

Government Code and Cypher School: Sigint Board and predecessors: Correspondence...

You are currently looking at the piece: HW 69/9

Security. Cooperation with United States. P/YB/113/AA1 Security ULTRA - USA, SEAC...

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