https://eblog.eb.mil.br/w/a-importancia-geopolitica-da-ucrania-para-moscou?p_l_back_url=/fi/?delta=40&tag=defesa&tag=geopol%C3%ADtica&tag=opera%C3%A7%C3%B5es+militares&tag=pandemia&tag=pesquisa+cient%C3%ADfica