each of us is obliged to become aware of the amount of suffering humankind forces on animals and find ways to do less harm ourselves .
이문장에서 humankind forces on animals 는 which that이 생략된 목적격 관계대명사이니
suffering which humankind forces on animals~~~
이렇게되는거죠? 선행사가 suffering이고 on뒤에 suffering 이 있어야하는거니까요. 제설명이 맞나요?