20,000 civilians, according to palestinian authorities. joining us now is nbc news correspondent and covering national security and the military. courtney, do you have any intel about why the radar facility was targeted here? >> yeah, so the radars can be used for a number of things, particularly, they can be used to target a ship out in the red sea which is one of the major ways that we have seen the houthis really there and commercial shipping and the southern red sea in recent weeks. we've seen what these launch of one-way attack drones, smaller drones that are packed with explosives. the goal is that they ran them into a ship, causing damage and even worse at times. the other major projectiles that the houthis have been