On 16 July 2016, Berissa was elected as the president of the Movement for United Albania, following its founding convention held in Pristina.

[3] Veliu was arrested by the Greek authorities and subsequently deported to the border crossing of Kakavija, as he is considered a threat to Greece, because of his extremist political views on uniting the Albanian and foreign territories into a single Greater Albanian state.

On 6 June 2017, he was arrested by the Albanian Police at the Albania-Kosovo border and is currently facing charges of burning foreign flags, igniting national hatred, distribution of unconstitutional printed material, and creation of unconstitutional parties & associations.

[4][5][6][7][8] On 11 July 2017, the court of Tirana, deemed Veliu's Movement for United Albania to be legal according to the constitution of the Republic of Albania, which recognizes the right to national unification as a legitimate and constitutional right.

[9][10][11] Tahir Veliu considered his full birth name to be an unwanted "imposition" of Turkish culture on Albanians from the Ottoman era and in April 2018, he announced that his name and surname was changed to Kastriot Berishaj.