As the fleets converged close to 18:00, the German battleships, including the "Nassau"s, engaged British light cruisers and destroyers, with "Posen" contributing to the destruction of the destroyer . By 18:30, the Grand Fleet had arrived on the scene, and was deployed into a position that would cross Scheer's "T" from the northeast. To extricate his fleet from this precarious position, Scheer ordered a 16-point turn to the south-west. At 18:55, Scheer decided to conduct another 16-point turn to launch an attack on the British fleet but was quickly forced to break off and withdraw. The Germans then maneuvered to disengage from the Grand Fleet and return to port; as darkness fell, the High Seas Fleet attempted to pass astern of the Grand Fleet as the latter steamed south, before turning south themselves to reach Wilhelmshaven. At around 21:20, lookouts aboard "Posen" spotted a group of British battlecruisers and she opened fire, scoring a hit on and straddling , though her sisters could not make out targets and held their fire. Shortly thereafter, "Nassau" and "Westfalen" engaged British light cruisers and forced them to withdraw.