The 2012 Sana'a bombing was a suicide attack on 21 May 2012, against Yemeni Army soldiers practicing for the annual Unity Day military parade in Sana'a, Yemen. The ceremony is carried out every year on 22 May since 1990 to mark the unification of North Yemen and South Yemen as the Republic of Yemen. Responsibility for the attack was claimed by the Al Qaeda in the Arabian Peninsula (AQAP) affiliate Ansar al-Sharia.