Myanmar ? Courts in military-ruled Myanmar delivered a devastating blow Tuesday to the nation’s pro-democracy movement, sentencing two dozen activists to harsh prison terms that will keep them behind bars long past a 2010 election.

Fourteen members of the Generation 88 Students group were sentenced to prison terms of 65 years each, and a labor activist, Su Su Nway, was sentenced to 12 1/2 years. Ten people allied with Nobel Peace laureate Aung San Suu Kyi’s National League for Democracy got jail terms of eight to 24 years.

Many of the activists were involved in protests last year that led to huge pro-democracy demonstrations that the army put down by force. According to U.N. estimates, at least 31 people were killed and thousands of demonstrators were detained. Many fled the country or went underground.

The lengths of the terms suggest the junta will pay little heed to calls from the U.N. and many Western nations to make its self-styled transition to democracy more fair and inclusive.