The long-running conflict in the Horn of Africa is taking on a new dimension. Kenya joined the fight against the Islamist group al-Shabaab in Somalia in October, provoked by numerous attacks by al-Shabaab. The conflict in Somalia has a number of indirect consequences for Kenya that threaten its own stability. One of them is the influx of large numbers of refugees. Near the border with Somalia is the world's largest refugee camp, Dadaab, which has been home to 400,000 refugees. The refugee complex has become Kenya's third largest " city ". The influx of refugees further weakens an already poor country. In addition to the indirect security threats posed by Somalia's instability, al-Shabaab groups have begun to threaten Kenya with direct attacks on its territory.