A boy touches old cannons which are displayed at Marco Polo Bridge on the outskirts of Beijing July 6, 2007, on the eve of the 70th anniversary of Japan's full-scale invasion of China. The exhibit coincides with the 70th anniversary of the July 7, 1937 skirmish at the Marco Polo Bridge near Beijing, which sparked an all-out war between China and Japan.[Reuters]

1

2

3

4