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spartans_in_darkness

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T8P SEGRETI/G8MINT/IX1<br />

courier messages. Elementary substitution and<br />

transposition systems were tried, <strong>in</strong> Vietnamese<br />

<strong>in</strong>stead of French, and evaluated by the cryptographers.<br />

Chart systems with regularly chang<strong>in</strong>g<br />

key were the first systems adapted by the Viet<br />

M<strong>in</strong>h military on a force-wide basis."<br />

(U) By early 1946, a Viet M<strong>in</strong>h communications<br />

web was tak<strong>in</strong>g shape. Hanoi became the<br />

control for a network which stretched out across<br />

the three regions of Vietnam. Outstations were<br />

located <strong>in</strong> the Viet Bac, Hoa B<strong>in</strong>h, and Dong Trieu<br />

military regions. The revolutionary military<br />

affairs committees of Trung Bo (Central Annam)<br />

and the cities of Hue and Tourane (Dan Nang)<br />

also were <strong>in</strong> contact with Hanoi.P<br />

(V) Ho Chi M<strong>in</strong>h arrives <strong>in</strong> Pa~i5 fo~ the start<br />

ofthe Fonta<strong>in</strong>ebleau talks<br />

EO 1.4. (c)<br />

Page 20<br />

T8P SE6RETIJeeMllnilX I

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