Believing in the power of defense, we challenged the battle.

He fought to defend the country.

Wey was a feudal state during the Spring and Autumn period.

He fought to defend his family.

Mamoru is my best friend.

What is this object?

Nobumori is my best friend.

She is in charge of watching over the patients at the hospital.

I stayed at home to watch over my sick grandmother.

He lost everything.