After the First World War in 1922, the Jewish society PKA received a concession from the British mandate to drain the Kabara swamph, mainly due to the malaria that the Jewish settlers in the area suffered as a result of it. The residents of the area, whose livelihood depended on the swamp, fought for their land in a well-publicized trial. Of the four groups of residents In the region, the only one who was able to prove possession of the land was the ancestors of the residents of Jessar. The mission to dry the swamp included a significant, difficult and exhausting enterprise, the majority of whom were employed in it were the Arab people of Al-Jawharna. The process continued until 1936 and in fact did not end.