were war crimes committed by the president of united states?

War crimes are "violations of the laws or customs of war", including but not limited to "murder, the ill-treatment or deportation of civilian residents of an occupied territory to slave labor camps", "the murder or ill-treatment of prisoners of war", the killing of hostages, "the wanton destruction of cities, towns and villages, and any devastation not justified by military necessity".

War crimes are defined in the statute that established the International Criminal Court, which includes:

Grave breaches of the Geneva Conventions, such as:
- Willful killing, or causing great suffering or serious injury to body or health
- Torture or inhumane treatment
- Unlawful wanton destruction or appropriation of property
- Forcing a prisoner of war to serve in the forces of a hostile power
- Depriving a prisoner of war of a fair trial
- Unlawful deportation, confinement or transfer
- Taking hostages

The following acts as part of an international conflict:
- Directing attacks against civilians
- Directing attacks against humanitarian workers or UN peacekeepers
- Killing a surrendered combatant
- Misusing a flag of truce
- Settlement of occupied territory
- Deportation of inhabitants of occupied territory
- Using poison weapons
- Using civilians as shields
- Using child soldiers

The following acts as part of a non-international conflict:
- Murder, cruel or degrading treatment and torture
- Directing attacks against civilians, humanitarian workers or UN peacekeepers
- Taking hostages
- Summary execution
- Pillage
- Rape, sexual slavery, forced prostitution or forced pregnancy

However the court only has jurisdiction over these crimes where they are "part of a plan or policy or as part of a large-scale commission of such crimes".

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The highlighted crimes are the ones that I believe Mr. Bush has committed and should be impeached for. What do you think?