Zaire to have replaced "Zaire" gradually in English usage during the 18th century, and "Congo" is the preferred English name in 19th-century literature, although references to "Zahir" or "Zaire" as the name used by the natives (i.e. derived from Portuguese usage) remained common. In 1965, as in 1960, the division of power in Congo-Léopoldville between President and Parliament led to a stalemate and threatened the country's stability. Joseph-Désiré Mobutu again seized power. Unlike the first time, however, Mobutu assumed the presidency, rather than remaining behind the scenes. From 1965, Mobutu dominated the political life of the country, restructuring the state on
27th Armoured Brigade reserve, 9th Brigade Group. During the follow-up operations after D-Day the 27th Armoured Brigade continued to support I Corps' attacks along the River Orne towards Caen. On 11 June a squadron of 13/18th Hussars supported 6th Airborne Division's attacks along the river, and later in the month the regiment supported 51st (Highland) Infantry Division in further attacks along the river. On 8 and 9 July, 27th Armoured Brigade supported I Corps' final successful attack on Caen. On 18 July Second British Army began a major offensive south from Caen (Operation Goodwood). I Corps' task was to attack along the left