Complex sentence: After Goa's Liberation by the Indian Army in 1961, Monteiro was recruited by PIDE (the dreaded Portuguese Secret Service) and, in 1965, he assassinated Humberto Delgado in Spain.
Split into simpler sentences: After Goa's liberation by the Indian Army in 1961, Monteiro was recruited by the Polícia Internacional e de Defesa do Estado (PIDE), the dreaded Portuguese Secret Service. In 1965, he assassinated Humberto Delgado in Spain.