Primera Batalla, the Spanish Civil War supplement for Disposable Heroes and Coffin for Seven Brothers.
This book contains information on the various factions, and the artillery, vehicles, and aircraft they employed.
Introducing our new WWI system, this is a stand alone game, allowing you to game small unit WWI actions. Rules include infantry, cavalry, artillery, vehicles, plus barbed wire, trench crossing, gas, and more. Troop lists are very flexible, allowing you to decide what you need to fight. Players of DH/C7B will be familiar with some mechanics, but you do not need DH/C7B to play.
Seek Out, Close With, and Destroy is a supplement that allows you to play Modern conflicts from Vietnam and beyond. The rules include infantry, vehicles, artillery, and aircraft support (helicopters included).
The supplement also has two Modern conflict modules: War at the Bottom of the World (the War in the Falklands) and Militia Wars of Somalia (which includes Somalis, U.S. Rangers, and Delta Force).
The Vietnam War, including platoon, artillery, vehicle, watercraft, and aircraft and helicopters as appropriate for the PAVN, VC, SV Army and MC, US Army and MC, ROK Army and MC, and ANZAC.