The 1988 Hargeisa-Burao offensive (Somali: Gudo-galkii Hargeysa iyo Burco) was a major offensive conducted during the Somaliland War of Independence in May 1988 by the Somali National Movement on the cities of Hargeisa and Burao, then the second and third largest cities of Somalia. The SNM captured Burao on 27 May within two hours, while the SNM entered Hargeisa on 29 May, overrunning most of the city apart from its airport by 1 June. During the offensive the Somali National Army committed gross human rights violations, including attacking the civilian population using heavy artillery and tanks.