resolve

• Stand your ground

  To maintain your position, opinion, or belief firmly despite opposition, threats, or pressure.

• Come hell or high water

  Regardless of any obstacles or extreme difficulties, a promised action will be performed or a goal will be achieved.

• A man's gotta do what a man's gotta do

  It signifies that a person must fulfill their responsibilities or confront a challenging situation, regardless of personal preference or difficulty.

• Over my dead body

  An emphatic refusal to allow something to happen, implying one would rather die than permit it.

• Do what needs to be done

  To take the necessary actions, even if difficult or unpleasant, to achieve a goal or resolve a situation.

• Unyielding

  Not giving way to pressure, persuasion, or force; firm and resolute.

• Adamant

  Firmly refusing to be persuaded or to change one's mind.