Complex sentence: In such conference, he called for the creation of a confederation of Latin American republics to better search for their common defense and prosperity, without political or economic barriers between them, and detailing the principles under which such a confederation should work.
Split into simpler sentences: In such conference, he called for the creation of a confederation of Latin American republics to better search for their common defense and prosperity, without political or economic barriers between them. In the same work, he also detailed the principles under which such a confederation should work.