The Commonwealth has admitted Rwanda as its 54th member.
The African country was admitted at the Commonwealth Heads of Government Meeting in Trinidad and Tobago, a statement from the group said.
A Rwandan minister said the move showed his country's "tremendous progress" over the last 15 years.
The former colony of Germany and Belgium is the second country to be admitted without a British colonial past or constitutional link to Britain.
Mozambique is the only other Commonwealth member without historic UK ties.
It joined the organisation 14 years ago.
Full story: BBC News, Nov. 29, 2009 - Rwanda becomes a member of the Commonwealth
SEE ALSO What would the Commonwealth do for Rwanda?