Ridderronde Maastricht is held in the country that  borders what country on the east?
Netherlands The Netherlands ( ; Dutch: "Nederland" ] ; West Frisian: "Nederlân" ), also known informally as Holland, is a densely populated country in Western Europe, also incorporating three island territories in the Caribbean. It is the main constituent country of the Kingdom of the Netherlands. The European portion of the Netherlands borders Germany to the east, Belgium to the south, and the North Sea to the northwest, sharing maritime borders in the North Sea with Belgium, the United Kingdom, and Germany. The four largest cities in the Netherlands are Amsterdam, Rotterdam, The Hague and Utrecht. Amsterdam is the country's capital, while The Hague holds the Dutch seat of parliament and government. The port of Rotterdam is the largest port in Europe and the world's largest outside east Asia. Utrecht is a central node for road and railway communications, commerce, and cultural events.
Vietnam Vietnam ( , ; Vietnamese: "Việt Nam" ] ), officially the Socialist Republic of Vietnam (Vietnamese: "Cộng hòa xã hội chủ nghĩa Việt Nam" ), is the easternmost country on the Indochina Peninsula in Southeast Asia. With an estimated /1e6 round 1 million inhabitants as of , it is the world's 14th-most-populous country, and the ninth-most-populous Asian country. Vietnam is bordered by China to the north, Laos to the northwest, Cambodia to the southwest, Thailand across the Gulf of Thailand to the southwest, and the Philippines, Malaysia and Indonesia across the South China Sea to the east and southeast. Its capital city has been Hanoi since the reunification of North and South Vietnam in 1976, with Ho Chi Minh City as a historical city as well.