
Millitary Equipments
In 1902, the British War Office officially announced hand grenades were obsolete and had no place in modern warfare. However, within just two years, following the success of improvised grenades in the trench warfare conditions of the Russo-Japanese War, and reports from a British observer of the conflict, a reassessment was made and the Board of Ordnance was instructed to develop a practical hand grenade.
The following is a list of currently active United States military land vehicles grouped by type of land vehicle
Active United States military aircraft is a list of military aircraft that are used by the United States military. For aircraft no longer in-service see List of military aircraft of the United States.
Grenades
Ground vehicles
Air vehicles

Bullets
A bullet is a projectile propelled by a firearm, sling, slingshot, or air gun. Bullets do not normally contain explosives, but damage the intended target by impact and penetration. The word "bullet" is sometimes colloquially used to refer toammunition in general, or to a cartridge, which is a combination of the bullet, case/shell, powder, and primer. This use of 'bullet', when 'cartridge' is intended, leads to confusion when the components of a cartridge are discussed or intended.