The Marder upgraded the equipment of the Panzergrenadiertruppe and was in service with the Bundeswehr until it was replaced by the Puma. The Marder was upgraded by arming it with the Milan
Germany Still Can't Give Up Its Marder Infantry Fighting Vehicles After Half A Century
German Armor Blog: Puma IFV
The Marder infantry fighting vehicle turns 50
Puma for the Bundeswehr
Germany suspends Puma procurement, Marder to continue serving with VJTF
Puma tanks unusable: Is Germany's military unfit for action? – DW – 12/19/2022
German Puma IFV: 17 repaired, 150 are upgrading to S1 design