A few days later, the 6th LCS, under the command of Rear-Admiral Edwyn Alexander-Sinclair, was ordered to the Baltic Sea to support the Baltic States as they attempted to secure their independence from Russia. Together with her half-sister and five destroyers, the ship bombarded Bolshevik positions east of Reval (Tallinn), Estonia, on 14 December and brought the Russian offensive to a halt after they destroyed the one bridge connecting them with Petrograd (Saint Petersburg), Russia. The next day, her starboard AA gun was dismounted and given to the Estonians. The 6th LCS was recalled in early January 1919 and arrived back in Rosyth on 10 January.