According to the Jewish National Fund, upon its founding, Ein HaMifratz was immediately attacked by "Arab gangs".[2] The initial problems facing the settlers were the saltwater swamps and the shifting sands at the mouth of the Na'aman River. The settler originally did mixed farming and fish breeding.[2] By 1947 the kibbutz had a population of 400.[2]
Until the capture of Acre, Ein Hamifratz was a frontline settlement. The settlers were involved in the conquest of the Galilee in November 1948.[2]
