FP describes it as the greatest humanitarian disaster since WWII. This one was brought on by famine caused by drought.
UN General Secretary has asked for $4.4 billion to avert disaster, but so far a small fraction of that has been raised. The US should be taking a leadership role here, but so far I have been unable to find any statistics on US emergency assistance to Somalia or Africa in general.
Starvation Stalks the Horn of Africa