DONDO, ANGOLA APRIL 3: Boys walk along the newly put railway tracks on April 3, 2007 in Dondo, about 200 kilometers outside Luanda, Angola. Hundreds of Chinese workers are working here to put the new tracks. Chinese companies are building and upgrading two different railways in Angola, and this part is about 500 kilometers long. All the special equipment has been shipped from China and hundreds of workers live in military style road camps. They are moved as the tracks are laid down. Tens of thousands of Chinese has come to Africa the last years to work in infrastructure projects and businesses. Chinese companies are often the lowest bidders for contracts, pricing out the more expensive European companies. The Chinese people often live where they work and rarely interact with the local population. Most Chinese don't speak English and they are mostly staying in the compounds cooking their Chinese food. .(Photo by Per-Anders Pettersson).