Complex sentence: In 1928 he became a member of the Communist Party in El Salvador, after which he began to organize workers at the United Fruit Company plantations in northern Honduras through the "Federación Sindical Hondureña" ('Honduran Trade Union Federation').
Split into simpler sentences: In 1928 he became a member of the Communist Party in El Salvador. After his return to Honduras he began to organize workers at the United Fruit Company plantations in northern Honduras through the "Federación Sindical Hondureña" ('Honduran Trade Union Federation').