 Complete the following phrase:  The 1st Battalion deployed to South Africa as part of 5th Irish Brigade, commanded by Major-General Fitzroy Hart, and saw action at the Battle of Colenso in December 1899, part of the attempt to relieve the town of Ladysmith, besieged by Boer forces. The brigade suffered heavily during their participation in the battle, the Boers inflicting heavy casualties: the regiment had 24 men killed and 105 officers and men wounded. The Rangers fought at Spion Kop in January 1900 and the 