How are the ninth and tenth amendments similar

The Ninth Amendment guarantees that the rights that are enumerated in the Constitution shall not be construed to deny or disparage others retained by the people, and the Tenth Amendment guarantees that the powers not delegated to the United States government by the Constitution, nor prohibited by it to the states, are reserved to the states respectively, or to the people.

These Amendments are similar in the sense that they both prevent the federal government from expanding and from abusing of its authority, they both deal with issues that are not specifically mentioned elsewhere in the Bill of Rights and they guarantee some rights of the states and the people, even if they are not explicitly stated in the Constitution.

it was the "4. potsdam" conference that demanded the unconditional surrender of japan, since it was clear that the japanese would continue to find until the very last man otherwise.