The Irish National Land League (Irish: Conradh na Talún) was an Irish political organisation of the late 19th century which sought to help poor tenant farmers. Its primary aim was to abolish landlordism in Ireland and enable tenant farmers to own the land they worked on. The period of the Land League's agitation is known as the Land War. Historian R. F. Foster argues that in the countryside the Land League "reinforced the politicization of rural Catholic nationalist Ireland, partly by defining that identity against urbanization, landlordism, Englishness and—implicitly—Protestantism." Foster adds that about a third of the activists were Catholic priests, and Archbishop Thomas Croke was one of its most influential champions.