Phyllis Wahura Maina, a student at the Confucius Institute of Kenyatta University in Nairobi, Kenya, studies at the Sun Tzu Book House on the campus. ZHANG JIAN/XINHUA NAIROBI/JINAN — "The supreme art of war is to subdue the enemy without fighting," says Eddy Paul Kirimi, a student at the Confucius Institute at the Kenyatta University in Nairobi, Kenya. The Sun …