Sure it is.
Article IV
Section 3. New states may be admitted by the Congress into this union; but no new states shall be formed or erected within the jurisdiction of any other state; nor any state be formed by the junction of two or more states, or parts of states, without the consent of the legislatures of the states concerned as well as of the Congress.
The Congress shall have power to dispose of and make all needful rules and regulations respecting the territory or other property belonging to the United States; and nothing in this Constitution shall be so construed as to prejudice any claims of the United States, or of any particular state.
Petition our congress to be admitted as a state of our union.
If congress votes the petition down, well, at least the effort was made and future considerations should be based on the attempt.
You're either with us or against us.
LOL, Puerto Rico can't even be admitted to the union and they've tried several times. You honestly believe the majority of the citizens of the respective states would elect representation to admit a state into the union halfway around the world in a war zone?!?
You're either with us or against us.
On what? Limited government? Economic freedom?