On October 15, Kenya's top security chiefs declared war on Al Shabaab, the loose coalition of Islamist militias that controls southern Somalia. The next day, hundreds of Kenyan soldiers in armored trucks and tanks reportedly "stormed" across Kenya's northern border and into the region. The goal being to decimate Al Shabaab, which was originally catapulted to dominance in 2007 consequent to a US-backed Ethiopian intervention.