The biggest refugee camps are in Kenya. Why?

Kenya is a relatively peaceful nation unlike most countries in Africa. The only notable clashes that have happened in their history are ethnic clashes in 1992 and post-election violence in early 2008. Both conflicts were resolved with the help of the international community. In comparison, most countries that neighbor Kenya have long-running conflicts and disputes since the independence wave witnessed in Africa in the 1960's. Ethiopia, Somalia, Uganda, Sudan, and recently South Sudan all have millions of refugees who went to Kenya for refuge. Currently, Uganda, South Sudan and Somalia contribute the most refugees in Kenya. Also, Kenya is widely known as a democratic country, and it has ties with most nations. As a result of this political stability, the economy of the country is well off compared to those of her neighbors. This very attractive to not only refugees but also those that look to seek for greener pastures. The Kenyan government has reportedly threatened to close these refugee camps because they act as a haven for smugglers and the black market. Those threats are yet to come to fruition.