What kind of armed forces and police should we have?

Put this way, the question is badly framed from the start. It assumes too much.

From a materialistic point of view, nobody owes anyone anything. No institution is guaranteed existence, even less our support.
From a spiritual point of view, “Let no debt remain outstanding, except the continuing debt to love one another” (Romans 13:8).

Therefore, if someone decides to enter the army to participate in collective protection, such a decision can be only voluntary.

And such an army must operate without shedding blood, because it is unacceptable to use violence and to attract others into this practice.

Here are some examples of organisations that fit this description:

For more details see Nonviolence in Action: Methods and Approaches, section Conflict resolution.

Updated: Jan 03, 2022