On March 17, 1945, an SS unit fired eleven V2 rockets from a launch site in the Netherlands—to strike what target?

The rockets were aimed at the Ludendorff Bridge in Remagen (Germany), which US troops had seized and were using to cross the Rhine. The attack was ordered by Hitler and Himmler, it was the first attempt to use V2 rockets against a specific tactical target. Because the rockets were highly inaccurate, none struck the bridge itself, but detonations nearby still killed and injured American soldiers and German civilians.

https://en.wikipedia.org/wiki/Battle_of_Remagen#V2_rockets_used

https://www.v2rocket.com/start/deployment/v2s-on-remagen.html