Bulgaria is said to be a worthy ally with an important contribution into overall security, according to a statement of the NATO headquarters in Brussels made to the Bulgarian National Radio. The Alliance has not commented the recent statement of Bulgarian Prime Minister Boyko Borissov for a possible withdrawal of the Bulgarian contingent from Afghanistan. Bulgaria contributes by considerable involvement of Bulgarian troops in the NATO mission in Afghanistan which trains, advises and supports the Afghan security forces, an official from the organization has said. Bulgaria currently has about 110 staff in Afghanistan: advisory teams for training of the local security forces in Kabul, and in Qandahar Bulgarians take part in guarding the airport. The Bulgarian prime minister said that Bulgaria was paying about 40-45 million neuro per annum for its Afghanistan involvement – financing that would otherwise go for protection of the Bulgarian borders from migrants.