Germany has the FAUST system operational, e.g. with JgBtl 292 in the D/F Brigade. It's also in active use e.g. to control German units, such as patrols, in ISAF, KFOR and SFOR. In KFOR it has been used since October 2004, in Afghanistan since 2003. FAUST is short for Führungsausstattung Taktisch, Tactical Command Equipment.
EADS claimed in 2005 that FAUST was the only operational battlefield command and awareness system in Afghanistan, Kosovo and Bosnia.
The commander of a FAUST-equipped unit (platoon, company, battalion usually) has a large projector showing data about all own units as well as discovered enemy units on a electronic 3D battlefield map. The system additionally draws data on the units' personnel and equipment from a constantly updated database.
Information is updated and inserted into the system in realtime e.g. also through reconnaissance units or drone video data. The commander can use FAUST to assess the situation and transmit orders to the units, both using point-and-click standardized order sets as well as being able to transmit freetext orders, or handing them e.g. situational maps or recon results in graphical form.
The basic system is restricted to vehicles, if the infantry is equipped with IdZ (like on deployments or in selected units like JgBtl 292), the whole thing can go down to the single soldier in theory.
At least that's what's been declassified about it. There's a higher-level system based around FAUST being implemented (FüInfoSysH, Army Command and Information System).
Also, satellites are way overrated by a lot of people. At least as far as realtime recon goes, which isn't really possible for satellites at all.