Definitions by TI
howitzer
A Howitzer is a powerful, automatic loading artillery cannon. The current artillery in the USA military is the M109 Howitzer. It is mobile and can fire many, high explosive rounds at far away targets. Howitzers are generally used for support or to soften up an area before said area is invaded.
A10
The name for the US military's current close air support aircraft. It can carry a multitude of missiles (Maverick), cluster bombs (CBU97), and guided bombs. It also carries the General Electric GAU-8/A Avenger Gatling gun. It is as large as an old Volkswagen Beetle, and has 7 30mm, quick rotating barrels that fire armor penetrating rounds.
The Iraqi Republican Guards shit their pants when they heard the cry of the A10's turbines and the yell of the GAU-8/A.