The first U.S. observation balloon of World War I is shot down north of the village of Villers sur Marne, France. The French-built balloon is manned by members of the 2nd Balloon Co., who both escape safely after the attack by a German pilot flying an Albatros.
The Pentagon has concluded a new agreement to buy laser-guidance kits that turn rockets into drone-killing weapons. BAE Systems and the Defense Department announced a framework deal of up to seven years for 25,000 Advanced Precision Kill Weapon System guidance kits annually for the U.S. military.