12 June 1944
The 21.Army attempts to capture parts of the VT-line.
The 21st Army Headquarters issued an order on June 12 at 2.20 that 30.Ka.AK and 109.AK had to secure within the day bridgeheads for the main army's attack. 30.Ka.AK was to capture Kivennapa and 109.AK Kuuterselkä, Sahakylä and Metsäkylä.
In the direction of Vammelsuu, attack of two Infantry Regiments of 109.D is stopped by strong Finnish resistance. The division's units suffer severe losses in Finnish counter-attacks and artillery concentrations.
In the morning, the attack on Kuuterselkä is joined by 1.Armored Brigade (1.Ps.Pr.) which has orders to advance from Kuuterselkä to Mustamäki in west, from there the attack is to be continue on Vammeljärvi and further north-west along the road.
However, the attack of the 1.Ps.Pr. stops immediately in the morning on the VT-line at Kuuterselkä. The attack is renewed during the day together with an attack by one infantry regiment, but Lieutenant-General Alfjorov soon calls off the attack as it bogs down.
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Lieutenant-Colonel Ehrnrooth's Infantry Regiment 7 retreats to Siiranmäki and sets up for defense.
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The Armoured Division is subordinated to IV AK in case the VT-line breaks.
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Hitler agrees to resume weapons transports to Finland.
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The 17th Division and the 20th Brigade are ordered to move from Aunus to the Isthmus.
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Finnish AA downs 15 Soviet planes.
Finnish daily losses: 120