The National Union of Namibian Workers and affiliated unions will today hold a series of mass demonstrations to protest against the liquidation of Air Namibia. General Secretary of the Namibia Transport and Allied Workers Union, which is joining the demonstrations, John Kwedhi says they will host marches in all 14 regions, while in Windhoek they will hand over their petition to Swapo Party Secretary General Sophia Shaningwa and thereafter to Prime Minister Saara Kuugongelwa-Amadhila.