To understand 1998 's attack , one must understand that Kenya and Al-Shabaab are at war . Al Qaeda 's Thursday attack on the U.S. Embassy is the single largest , but Al-Shabaab have killed many more Kenyans .
To understand Thursday 's attack , one must understand that Kenya and Al-Shabaab are at war . Al Qaeda 's 1998 attack on the U.S. Embassy is the single largest , but Al-Shabaab have killed many more Kenyans .