The Sunda Plate was formerly considered a part of the Eurasian Plate, but the GPS measurements have confirmed its independent movement at 10 mm/yr eastward relative to Eurasia.
Such has been the patient sufferance of these Colonies; and such is now the necessity which constrains them to alter their former Systems of Government.
Sunda Plate (Wikipedia) The Sunda Plate is a minor tectonic plate straddling the Equator in the Eastern Hemisphere on which the majority of Southeast Asia is located.