Complex sentence: Frederick Roberts arrives at Cape Town to replace Redvers Henry Buller as commander-in-chief of the British forces in South Africa, accompanied by Horatio Kitchener as his chief-of-staff.
Split into simpler sentences: Frederick Roberts arrives at Cape Town to replace Redvers Henry Buller as commander-in-chief of the British forces in South Africa. He is accompanied by Horatio Kitchener as his chief-of-staff.