phnom penh cambodians thursday mark 64th anniversary country independence france release doves balloon sky independence monument capital phnom penh late king norodom sihanouk declare cambodia independence france 1953 seize power year early bloodless coup maintain good relations european nation thursday independence ceremony attend current king norodom sihamoni prime minister hun sen rule cambodia 30 years attend thousands school children civil servants foreign diplomats cambodia french rule almost century 1953 independence hun sen facebook post credit king norodom sihanouk devote life fight independence november day bring independence territorial integrity peace development hun sen say hun sen rule cambodian people party crack opposition recent months lead 2018 election government ask supreme court dissolve main opposition cambodia national rescue party court rule expect decide matter next week cambodia mark independence france doves balloon