Muhammad Ali sent 16,000 soldiers, and 63 escort vessels under command of his son, Ibrahim Pasha. Britain, France, and Russia intervened to protect the Greek revolutionaries. On 20 October 1827 at the Battle of Navarino, while under the command of Muharram Bey, the Ottoman representative, the entire Egyptian navy was sunk by the European Allied fleet, under the command of Admiral Edward Codrington.
Boer guns began shelling the British camp from the summit of Talana Hill at dawn on 20 October. Penn Symons immediately counter-attacked: his infantry drove the Boers from the hill, for the loss of 446 British casualties, including Penn Symons.
By 20 October the Germans had reached the western edge of Kharkov, it was taken by 24 October. At that time, however, most of Kharkiv's industrial equipment had been evacuated or rendered useless by the Soviet authorities.
On 20 October, Messi scored a penalty in a 5–1 home victory against Ferencváros in the Champions League, becoming the first player in history to score in sixteen consecutive Champions League seasons.