英文を日本語訳して下さい。
President Wilson agreed to this, in the belief that such cooperation would sustain continued good relations with Germany, and that more efficient German-American diplomacy could assist Wilson's goal of a negotiated end to the war. The Germans handed in messages to the United States embassy in Berlin, which were relayed to the embassy in Denmark and then to the United States by American telegraph operators. However, the United States placed conditions on German usage, most notably that all messages had to be in the clear (i.e., uncoded). The Germans assumed that the United States cable was secure and used it extensively.
Obviously, Zimmermann's note could not be given to the United States in the clear. The Germans therefore persuaded Ambassador James W. Gerard to accept it in coded form, and it was transmitted on 16 January 1917.
In Room 40, Nigel de Grey had partially deciphered the telegram by the next day.
