A soldier with Chinese armed police carries a gun as they march during a rehearsal of a ceremony marking the 74th anniversary of the start of the Nanjing Massacre at the Nanjing Massacre Museum, Jiangsu province Dec 12, 2011. Several ceremonies will be held on Tuesday, Dec 13, 2011, to commemorate the 1937 massacre, when Japanese troops killed more than 300,000 people.

Chinese armed police carry wreaths as they march during a rehearsal of a ceremony marking the 74th anniversary of the start of the Nanjing Massacre at the Nanjing Massacre Museum, Jiangsu province Dec 12, 2011.

Chinese armed police carry wreaths as they march during a rehearsal of a ceremony marking the 74th anniversary of the start of the Nanjing Massacre at the Nanjing Massacre Museum, Jiangsu province Dec 12, 2011.

Chinese armed police carry wreaths as they march during a rehearsal of a ceremony marking the 74th anniversary of the start of the Nanjing Massacre at the Nanjing Massacre Museum, Jiangsu province Dec 12, 2011.