A country in southeast Asia, also known as Burma. For political reasons Myanmar is preferred.
People from Mayanmar are Burmese.
Names in Myanmar do not contain a surname element. The whole name should be used each time, unless there is a known exception, for example Aung San Suu Kyi may be referred to as Suu Kyi at second reference.
U or Daw in a name is an honorific and may be dropped.