E.E.F.

E.E.F. stands for the British-led Egyptian Expeditionary Force.  File:Palestin EEF 1 A.webp|1 piastre first issue, recognizable by being rouletted. File:Palestine EEF A.jpg|1 piastre value from the June 1918 set. 
 * In November 1917, the army occupied Palestine. A brief period of civilian free mail service was allowed.
 * With the issue of two stamps in February 1918, the free mail period ended.
 * In June 1918, a set of 11 definitives was released. E.E.F. post offices were set up in French-occupied areas of the Near East. From Fall 1918 to 1920-22 depending on the region, those stamps could be used from there. See the Stanley Gibbons catalogue for the British Commonwealth.
 * With British mandates established for a separate Palestine and Jordan/Transjordan, and different overprints of existing E.E.F. stamps were used for their first issues. Palestine overprints are bilingual; Jordan overprints are in Arabic only.