Bhutan officially the Kingdom of Bhutan druk gyal khap is a sovereign state landlocked in the Eastern Himalayas in South Asia. Bhutan borders China to the north and India to the south, east and west. To the west, it is separated from Nepal by the Indian state of Sikkim; and further south it is separated from Bangladesh by the Indian states of Assam and West Bengal. Thimphu is Bhutan’s capital and largest city, while Phuntsholing is Bhutan’s financial centre.
Bulgaria officially the Republic of Bulgaria Republika Bǎlgariya, pronounced is a country in southeastern Europe. It is bordered by Romania to the north, Serbia and Macedonia to the west, Greece and Turkey to the south, and the Black Sea to the east. With a territory of 110,994 square kilometres (42,855 sq mi), Bulgaria is Europe’s 16th-largest country.
Cambodia officially known as the Kingdom of Cambodia Preăh Réachéanachâk Kâmpŭchéa, IPA: is a country located in the southern portion of the Indochina Peninsula in Southeast Asia. It is 181,035 square kilometres (69,898 sq mi) in area, bordered by Thailand to the northwest, Laos to the northeast, Vietnam to the east, and the Gulf of Thailand to the southwest.
Thailand officially the Kingdom of Thailand Ratcha-anachak formerly known as Siam is a country at the centre of the Indochinese peninsula in Southeast Asia. With a total area of approximately 513,000 km2 (198,000 sq mi), Thailand is the world’s 51st-largest country. It is the 20th-most-populous country in the world, with around 66 million people. The capital and largest city is Bangkok.
Vietnam Nam is the easternmost country on the Indochina Peninsula in Southeast Asia. With an estimated 90.5 million inhabitants as of 2014, it is the world’s 14th-most-populous country, and the eighth-most-populous Asian country. Vietnam is bordered by China to the north, Laos to the northwest, Cambodia to the southwest, and Malaysia across the South China Sea to the southeast. Its capital city has been Hanoi since the reunification of North and South Vietnam in 1975.