April, thereafter serving as a joint communications center to coordinate Kriegsmarine, Wehrmacht, and Luftwaffe operations. She was relieved of this duty on 24 April, though she remained in Oslo until 7 June. During this period, Großadmiral (Grand Admiral) Erich Raeder visited the ship on 17 May. Emden arrived back in Swinemünde on 8 June, where she resumed training duties. Baltic operations From 7 November 1940 to 15 February 1941, the ship was in dry dock for maintenance. In September, she was assigned to the Baltic Fleet, centered on the newly commissioned battleship ; the Baltic Fleet was tasked with preventing the Soviet Navy from breaking out of the Baltic. Emden and Leipzig were the core of the southern group, which was based in Libau. The fleet remained on station only briefly, and when it became clear that the Soviet fleet had remained in port, the German Baltic Fleet was dissolved. On 16 September, Emden was operating off Dagö with Leipzig and three torpedo boats; the ships came under fire from Soviet coastal batteries, but were undamaged. A group of four Soviet torpedo boats also made an unsuccessful attack on the German squadron. Emden again provided gunfire support to German troops fighting on the Sworbe Peninsula from 26 to 27 September. Later on the 27th, the ship was transferred to Gotenhafen. She was assigned to the newly formed Training Unit of the Fleet in November 1941, and she would remain attached to the unit for the rest of the war. From June to November 1942, the ship was thoroughly overhauled in Wilhelmshaven, before returning to Gotenhafen on 7 November. Raeder again came aboard the ship for the voyage back to Gotenhafen; this was his last visit to a warship before his resignation. While on sea trials after the 1942 overhaul, Emden reached a speed of , significantly less than her original top speed. By that time, the ship had been in service for sixteen years and retained her original engines. Due for an engine replacement, the war situation prevented the work from being done and Emden soldiered on. The year 1943 passed uneventfully for Emden, though she received a strengthened anti-aircraft battery that included and a pair of Bofors guns. The ship took part in a pair of minelaying operations in the Skagerrak in late 1944, the first from 19 to 21 September and the second from 5 to 6 October.