https://eblog.eb.mil.br/w/a-importancia-geopolitica-da-ucrania-para-moscou?p_l_back_url=/web/guest?delta=60&tag=defesa&tag=dissuas%C3%A3o+extrarregional&tag=geopol%C3%ADtica&tag=hist%C3%B3ria&tag=hist%C3%B3ria