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Zimmermann's office sent the telegram to the German embassy in the United States for retransmission to Von Eckardt in Mexico. It has traditionally been understood that the telegram was sent over three routes. It went by radio, and passed via telegraph cable inside messages sent by diplomats of two neutral countries (the United States and Sweden).
The ADFGX and ADFGVX field ciphers were a modified polybius system with single order double columnar transposition and frequent key change, with letters optimized for Morse. It was later broken by the famous French cryptanalyst Georges Painvin. The breaking of the ADFGX cipher by Painvin was the second time during the war that cryptanalysis ...
In World War I, aircraft were initially intended for aerial reconnaissance, however some pilots began to carry rifles in case they spotted enemy planes.Soon, planes were fitted with machine guns with a variety of mountings; initially the only guns were carried in the rear cockpit supplying defensive fire (this was employed by two-seat aircraft all through the war).
The multi-national military attachés and observers who took part in the First World War were expressly engaged in collecting data and analyzing the interplay between tactics, strategy, and technical advances in weapons and machines of modern warfare.
An early parade of the LDV in July 1940. The committee arose from a desire by the American public to provide private arms for the defense of British homes. [1] Offers had been made to the British Purchasing Commission (BPC), responsible for co-ordinating the British procurement of war supplies in North America, by the Committee to Defend America by Aiding the Allies (CDAAA) in early July.
Microsoft co-founder Paul Allen bought a copy of Einstein's infamous 1939 letter to Roosevelt in 2002. It just sold at auction for double what he paid. Einstein's 1939 letter, warning of atomic ...
Jana, now 60, has spent the past two years transcribing her father's journal, photo albums, and more than 300 letters sent home during his tours of duty abroad. There's great value in what Jana ...
The 300-letter collection detailed the love between soldier Gilbert Bradley and his lover -- who signed the letters with the initial "G". Decades later it was discovered that his pen pal's name ...