Who are the Sila?  The Sila are one of the tiniest of Vietnam's official minorities. There are probably only about 600 found in Vietnam today. But they live very close to Vietnam's northern border with Laos, where an estimated 22,000  Sila are also living.

They are known by a number of other names.  Of these, Cu De Su is perhaps the most common, but they are also known as Kha Pe.

They are an unreached people group.