 Complete the following phrase:  After the English invaded South Africa in 1899, Duquesne returned to South Africa to join the Boer commandos as a lieutet attached to the staff of Commandant General Piet Joubert in Pretoria. He was wounded with a bullet through his right shoulder at the Siege of Ladysmith, but was promoted to the rank of captain in the artillery. Duquesne was captured by the English at the 