Complex sentence: On another front, the Dominican government had supported Ramón Emeterio Betances, a Puerto Rico Nationalists seeking help from overseas, and allowed him to recruit and arm a small army and gave him a ship containing weapons.
Split into simpler sentences: On another front, the Dominican government had supported Ramón Emeterio Betances, a Puerto Rico Nationalist. They allowed him to recruit a small army, and gave him a ship containing weapons.