Complex sentence: In 1749 A major effort to get rid of the whole gipsy population in Spain was carried out through a raid authorized and organized by the government that led to the arrest of all gypsies (Romani) in the realm, and their imprisonment in labor camps.
Split into simpler sentences: In 1749 A major effort to get rid of the whole gypsy population in Spain was carried out through a raid organized by the government. It arrested all gypsies (Romani) in the realm, and imprisoned them in labor camps.