washington/phnom penh unite state say wednesday would restrict entry people involve cambodian government action undermine democracy include dissolution main opposition party imprisonment leader visa sanction tough step western country since crackdown critics prime minister hun sen ahead election next year authoritarian leader seek extend three decades power call cambodian government reverse course reinstate political opposition release kem sokha allow civil society media resume constitutionally protect activities state department say statement secretary state restrict entry unite state individuals involve undermine democracy cambodia certain circumstances family members individuals also subject visa restrictions add cambodia supreme court dissolve main opposition party cambodia national rescue party cnrp last month government request kem sokha arrest allegedly plot overthrow government u.s. help reject accusation political ploy dissolution cnrp condemn western countries serious blow democracy since international peace deal u.n.-run elections early 1990s end decades war genocide cambodia government condemn visa restrictions announce washington statement show unite state destroy democracy government spokesman phay siphan tell reuters say action opposition legal take place court parliament cnrp politicians rebel terrorists say unite state say ban cnrp election legitimate free fair withdraw offer help fund european union raise possibility withdraw trade preferences vital garment industry account well 60 percent cambodia export last year hun sen dismiss western pressure build close tie china oppose u.s. efforts rally southeast asian countries stand beijing expand power region early wednesday hun sen accuse sam rainsy step cnrp leader early year bid forestall ban party commit treason incite soldier defy order hun sen say rainsy live exile france would face new legal action comment u.s. deny visa cambodian officials opposition crackdown