Burning Horizon is a stand-alone add-on for the original Blitzkrieg game.
Blitzkrieg is a real-time WW II tactical level game in the Close Combat style. You command your small group of combined arms troops in a single battle or campaign. Campaigns cover a wide range of locations around the world, like the forests of Ardennes, the deserts of Northern Africa, the jungles of Far East and D-Day in Normandy. The game holds hundreds of WW II units from the all-familiar German tanks to obscure trucks. On top of normal troops you can order air support in the form of bombers, fighters, ground attack planes, recon and paratroopers.
Successfully completing missions gains you promotions and your troops improve their experience. Success does not come easy, but you are presented with a wide selection of commands for this. On top of the standard movement and attack commands you can order your troops to dig in, lay mines, mount disbanded artillery pieces and so forth. The troops' movement can be altered by different formations and movement styles (crouching, aggressive, march columns etc).
The European release date was meant to coincide with the 60th anniversary of D-Day. On 6th June 1944, "Operation Overlord" began, the Western Allied effort to liberate mainland Europe from Nazi occupation during World War II.