Complex sentence: From his base in Bahia, Brazil, he planted time bombs disguised as cases of mineral samples on British ships and he was credited with sinking 22 ships; among them were the "Salvador" and the "Pembrokeshire".
Split into simpler sentences: From his base in Bahia, Brazil, he planted time bombs disguised as cases of mineral samples on British ships and he was credited with sinking 22 ships. Among them were the "Salvador" and the "Pembrokeshire".