On Tuesday (May 23), a horrific suicide attack in Manchester shook the entire world. 22 people were killed and several injured in a bomb blast at a concert. The following days were full of confusion, fear and desperation. Families frantically searched for their loved ones. Later, Isis claimed responsibility for suicide bombing that killed teenagers and children. It is time that the entire world joined hands to fight against terrorism. It is not wise to put the blame of Isis activities on one country. The militant group is trampling with peace of the world. Countries should unite and form a coherent strategy to fight the terrorists. Asad Khuhawar Karachi