 Persianization is especially seen in the case of the "Kabulis", the long-established families from Kabul (usually Pashtuns completely immersed in Persian culture).Persianization is also reinforced by the incidence of urbanization in the country, which influenced the characteristics of the Afghan ethnic groups.The two most significant ethnic groups in Afghanistan are the Pashtuns, who are speakers of the Pashto language, and the Tajiks, who are Persian speakers.