23 June 1944
Soviet Naval Infantry lands in the rear of Aunus Group at Tuulos. Most Finnish troops are tied up at the PSS-line and what counter-attacks can be organized are unsuccessful in throwing the enemy back into Lake Ladoga.
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Soviet 32nd Army begins their offensive on the Maaselkä Isthmus against Finns in the Karhumäki-Osterjärvi-Liistepohja area. By evening, Finns are forced to withdraw from Karhumäki.
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German 303.Assault Gun Brigade arrives to Finland from Estonia and is sent immediately to Tali-Ihantala area.
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The Soviet Union demands an unconditional surrender from Finland.
Finnish daily losses: 525
Lagus' StuGs waiting for order to move out. (Tienhaara, NW of Viipuri)