The Germans went on the offensives in a region of Ukraine which is in the news constantly now, seeking to regain territory recently lost around Kharkov. They were successful in their month-long effort. Moreover, Soviet casualties were massively outsized compared to the Germans, which were comparatively light.
Amos 'n' Andy appeared for the first time on NBC. It remains popular with fans of old radio shows, although I've never grasped how that it continues to be, as it suffers, even in the radio format, from the white in blackface situation. Having said that, by the fall of 1943 black supporting actors were included.
U.S. forces continued to retreat in Tunisia.