Complex sentence: Continuing west, they were met by 1868 war veterans, such as Polish internationalist General Carlos Roloff and Serafín Sánchez in Las Villas, adding weapons, men and experience to the revolutionaries' arsenal.
Split into simpler sentences: Continuing west, they were met by 1868 war veterans, such as Polish internationalist General Carlos Roloff and Serafín Sánchez in Las Villas. This event adding weapons, men and experience to the revolutionaries' arsenal.