Question: What does the US believe caused this country where Siddhi Savetsila was born in to help Japan?

<P0-S0> various theories for the decline of the native american populations emphasize epidemic diseases, conflicts with europeans, and conflicts among warring tribes. <P0-S1> scholars now believe that, among the various contributing factors, epidemic disease was the overwhelming cause of the population decline of the american natives. <P0-S2> some believe that after first contacts with europeans and africans, old world diseases caused the death of 90 to 95% of the native population of the new world in the following 150 years. <P0-S3> smallpox killed up to one third of the native population of hispaniola in 1518. by killing the incan ruler huayna capac, smallpox caused the inca civil war. <P0-S4> smallpox was only the first epidemic. <P0-S5> typhus (probably) in 1546, influenza and smallpox together in 1558, smallpox again in 1589, diphtheria in 1614, measles in 1618—all ravaged the remains of inca culture. <SEP> <P1-S0> when ten of the twelve spies showed little faith in the doom and gloom report they gave about the land, they were slandering what they believed god had promised them. <P1-S1> they did not believe that god could help them, and the people as a whole were persuaded that it was not possible to take the land. <P1-S2> as a result, the entire nation was made to wander in the desert for 40 years, until almost the entire generation of men had died. <P1-S3> joshua and caleb were the two spies who brought back a good report and believed that god would help them succeed. <P1-S4> they were the only men from their generation permitted to go into the promised land after the time of wandering. <SEP> <P2-S0> Siddhi Savetsila was born in Bangkok. <P2-S1> He comes from an aristocratic background. <P2-S2> His father was a high-ranking official in the royal government. <P2-S3> His paternal grandfather was Henry Alabaster who was the British consul in Siam during the reign of King Rama IV (Mongkut) and then served as an advisor to King Rama V (Chulalongkorn). <P2-S4> His mother was an offspring of the influential Bunnag family, the daughter of Thet Bunnag (later Chao Phraya Suraphan Phisut), making him a direct descendant of Somdet Chao Phraya Borom Maha Prayurawongse. <SEP> <P3-S0> Bang Bon (Thai: บางบอน, pronounced [bāːŋ bɔ̄ːn]) is one of the 50 districts (khet) of Bangkok, Thailand. <P3-S1> Its neighbours, clockwise from north, are Bang Khae, Phasi Charoen, Chom Thong, and Bang Khun Thian districts of Bangkok, Mueang Samut Sakhon District and Krathum Baen District of Samut Sakhon Province, and Nong Khaem District of Bangkok. <SEP> <P4-S0> The official policy of the U.S. Government is that Thailand was not an ally of the Axis, and that the United States was not at war with Thailand. <P4-S1> Thailand has been treated by the United States in the same way as such other Axis-occupied countries as Belgium, Czechoslovakia, Denmark, Greece, Norway, Poland, and the Netherlands. <P4-S2> The policy of the U.S. Government ever since 1945 has been to treat Thailand not as a former enemy, but rather as a country which had been forced into certain actions by Japanese blackmail, before being occupied by Japanese troops.