in return for natural products, such as honey and hornbill beaks from the islands of the archipelago. Before the eighteenth and nineteenth century, the Europeans mostly were interested in expanding trade links. For the majority of the populations in each country, there was comparatively little interaction with Europeans and traditional social routines and relationships continued. For most, a life with subsistence-level agriculture, fishing and, in less developed civilisations, hunting and gathering was still hard. Europeans brought Christianity allowing Christian missionaries to become widespread. Thailand also allowed Western scientists to enter its country to develop its own education system as well as start sending Royal members and Thai scholars to get higher education from Europe and Russia. Japanese During World War II, Imperial Japan invaded most of the former western colonies under the concept of "Greater East Asia Co-Prosperity Sphere". However, the Shōwa occupation regime committed violent actions against civilians such as the Manila massacre and the implementation of a system of forced labour, such as the one involving four to ten million romusha in Indonesia. A later UN report stated that four million people died in Indonesia as a result of famine and forced labour during the Japanese occupation. The Allied powers who then defeated Japan (and other allies of Axis) in the South-East Asian theatre of World War II then contended with nationalists to whom the occupation authorities had granted independence. Indian Gujarat, India had a flourishing trade relationship with Southeast Asia in the 15th and 16th centuries. The trade relationship with Gujarat declined after the Portuguese invasion of Southeast Asia in the 17th century. American The United States took the Philippines from Spain in 1898. Internal autonomy was granted in 1934, and independence in 1946. Contemporary history Most countries in the region maintain national autonomy. Democratic forms of government are practised in most Southeast Asian countries and human rights is recognised but dependent on each nation state. Socialist or communist countries in Southeast Asia include Vietnam, Laos. ASEAN provides a framework for the integration of commerce and regional responses to international concerns. China has asserted broad claims over the South China Sea, based on its nine-dash line, and has built artificial islands in an attempt to bolster its claims. China also has asserted an exclusive economic zone based on the Spratly Islands. The Philippines challenged China in the Permanent Court of Arbitration in The Hague in 2013, and