defense? >> well, don, one of the things they have is this, the javelin rocket. and the javelin is an antitank missile that is designed to be fired by one person. usually the crew is a two-member crew. but it's designed to be fired at a tank. and the way it works is it has -- basically it's shoulder fired, pop rabble, like i mentioned, by a single soldier, ha z a range of about 8,200 feet, and can cause a lot of damage to a tank or anything that is moving on the ground. for airborne targets, we have the stinger, which is the most prominent of the air to air missiles or ground to air missiles that are we are firing or giving the ukrainians so they can fire at aircraft. it has a range of five miles, altitude up to 12,500 feet. and it is a heat-seeking antiaircraft weapon.