Sentence:  In a number of families, brothers joined opposite sides. Some fought on the communist side as guerrillas and assassinated their blood brothers who held jobs on village committees. Others who served the village militias shot and killed their siblings who came back from secret guerrilla bases in the <WSD>greenwoods</WSD>. 
Meaning of the word marked with <WSD> tags:  A forest in full leaf, as in summer.