Peace protesters have taken to the trees at a Czech military site where the US military wants to put up a controversial anti-missile radar. For the moment the Czech authorities are turning a wary blind eye to the Greenpeace protesters at the Brdy military base who number between 10 and 20 at any one time -- some in trees and some on the ground. Their presence since April 27 is sensitive however as polls indicate two thirds of Czechs oppose the missile shield that the United States wants to place in the country and neighbouring Poland. The Czech defence ministry believes "the Greenpeace members are not committing a crime but an offence," and has opted to seek "a non-conflict solution," spokesman Andrej Cirtek told AFP.