Complex sentence: Rape has been used as a as a weapon of psychological warfare for centuries, to terrorize, humiliate, and undermine the morale of the enemy, and sometimes as an act of ethnic cleansing to produce babies that share the perpetrators' ethnicity.
Split into simpler sentences: Rape has been used as a as a weapon of psychological warfare for centuries, to terrorize, humiliate, and undermine the morale of the enemy. Also rape was used as an act of ethnic cleansing to produce babies that share the perpetrators' ethnicity.