Pentágono se recusa a reafirmar defesa coletiva da OTAN, diz que decisão é de Trump https://www.reuters.com/business/aerospace-defense/pentagon-declines-reaffirm-natos-collective-defense-says-up-trump-2026-03-31/?taid=69cbfecb1de6e000018affd7 https://www.reuters.com/business/aerospace-defense/pentagon-declines-reaffirm-natos-collective-defense-says-up-trump-2026-03-31/?taid=69cbfecb1de6e000018affd7