During the late '90s, while Britain was undergoing its modernization of the Tornado fleet, Germany also began plans to upgrade their older Tornado IDS aircraft. The resulting upgrade package, named "ASSTA1" (Avionics System Software; Tornado in ADA) was finalized in 2000, to upgrade the German Tornado fleet for service in the 21st century. ASSTA1 incorporated a complete overhaul of most of the avionics suite, including an entirely new fire control system and weapons computer, GPS and Laser INS navigation suites, and the latest 1760 data bus, giving the Tornado full compatibility with the latest standardized NATO ordnance and their required targeting systems. As a result, in addition to its older loadouts, the ASSTA1 could carry the latest standard NATO guided ordnance, such as the AGM-88 HARM, in addition to the LITENING targeting pod and a plethora of Paveway III laser bomb options. Over the next years, German Tornados would also undergo the ASSTA2 and ASSTA3 upgrades, further enhancing their capabilities.