How ISIS used a sandstorm.

"The sandstorm delayed American warplanes and kept them from launching airstrikes to help the Iraqi forces, as the Islamic State fighters evidently anticipated."

The fighters used the time to carry out a series of car bombings followed by a wave of ground attacks in and around the city that eventually overwhelmed the American-backed Iraqi forces.

Once the storm subsided, Islamic State and Iraqi forces were intermingled in heavy combat in many areas, making it difficult for allied pilots to distinguish friend or foe, the officials said. By that point, the militants had gained an operational momentum that could not be reversed....

IN THE COMMENTS: SJ said: "It's hard to fight a war without putting soldiers on the ground in the area. Airplanes are useful, but they can't win a war by themselves." Surfed said: "Right out of the 1965 operational playbook of North Vietnamese General Vo Giap. Get close and intermingle in combat - it negates America's strengths in airpower and artillery. One place - Ia Drang Valley."