Prague - The Czech parliament's lower house Wednesday began debating Czech-US treaties on placing a planned US missile defence radar base on Czech soil.
Czech Prime Minister Mirek Topolanek lacks a clear majority for the US plans in the closely divided lower house.
He cancelled a White House meeting with US President George W Bush planned for Wednesday in order to back the treaties in the chamber.
Several lawmakers for the Greens, the junior coalition partner, either reject the project or would like to wait for a new US administration before making the decision.
Topolanek asked lawmakers to pass the treaties in the first vote and postpone the second and final vote until after a new US president takes office.