Battlefield.
On the battlefield you have air, sea and land units.
To buy new unit select menu/Actions/Buy unit and
after that by joystick(or system keys) manipulating
select highlighted area and click it to put new unit
on map. Click on unit to select unit.
Another click go to "Show Unit Screen". After
selecting unit click highlighted area to move unit or
enemy unit to attack. Dark units are units that already
moved. Remember that from river or swamp unit
attack is very weak. Otherwise it's good to attack
enemy on river for example. Always try use air unit
or artillery on enemy unit before attacking by tank
or infantry. Use land wisely!