What type of responsibility obliges a soldier to exercise reasonable and prudent actions to properly use, care for, and safeguard all government property in his physical possession?

The answer is Custodial responsibility
Custodial responsibility refers the obligation to provide a certain protective supervision or guidance upon a certain object or another person.
This type of responsibility is imposed to any persons who are using property that we're not personally own. (if the property is broken under our care, we may be required to take care of the repair or replacement)

Yes you are cute answer theories to explain the colonization of the new world the last great habitable landmass to be occupied by humans focus on the bering land bridge, or beringia, which emerge by siberia and alaska the last ice age.