European Data Relay System (EDRS)
The European Data Relay System (EDRS) is a developing constellation of European relay satellites situated in GEO. EDRS is designed to facilitate communications for spacecraft, LEO satellites, ground stations, and UAVs at all times, regardless of where a transmitter is relative to its receiver. EDRS functions in the S-, Ku-, and Ka-bands and also uses laser communications at 1064nm for intra-satellite information relay. 
On August 6, 2019, the EDRS-C was launched into GEO with a full laser payload. Its purpose is to begin the foundation of the EDRS constellation which will enable scientists to view satellite imagery in real time at any time they choose. 
On January 30, 2016, the EDRS-A was launched on-board a standard TV satellite for European customers.  EDRS-A contains a laser communication terminal and a Ka-band RF transmitter. Its purpose is to transmit information from its GEO orbit down to ground stations for information relay.