Spanish East Indies the early 19th century. Spain's influence on its former colonies in Asia-Pacific is significant to this day. The majority of the people of the Philippines, Guam and the Mariana Islands belong to the Roman Catholic faith which was introduced by Spanish missionaries in the 16th and 17th centuries. A large part of the population in these countries use Spanish names and surnames. Also, because of the introduction of new tools, products, crops and technology by Spaniards and Mexicans in the three centuries of colonial rule, many Spanish loanwords entered the native languages of these countries. Art forms such as music,
Dutch East Indies the declaration of war with Japan, over 100,000 natives volunteered. The KNIL hastily and inadequately attempted to transform them into a modern military force able to protect the Dutch East Indies from Imperial Japanese invasion. On the eve of the Japanese invasion in December 1941, Dutch regular troops in the East Indies comprised about 1,000 officers and 34,000 men, of whom 28,000 were indigenous. During the Dutch East Indies campaign of 1941–42 the KNIL and the Allied forces were quickly defeated. All European soldiers, which in practice included all able bodied Indo-European males were interned by the Japanese as POW's.