THE KEYSTONE is a WORD Keystone : a central stone at the summit of an arch, locking the whole together. synonyms:	cornerstone, central stone, quoin "a carved head formed the keystone of the door" the central principle or part of a policy, system, etc., on which all else depends. "cooperation remains the keystone of the government's security policy" synonyms:	foundation, basis, linchpin, cornerstone, base, principle, guiding principle, core, heart, center, crux, fundament, mainspring, priority "cooperation remains the keystone of the government's security policy" Article 4 sec 4 US Constitution :The United States shall guarantee to every state in this union , a republican form of government, and shall protect each of them against invasion; and on application of the legislature, or of the executive (when the legislature cannot be convened) against domestic violence. Article 4 sec 4 opening statement : "The United States shall guarantee to every state in this union " When the Constitution was written the United States was ONLY 13 Separate Nations/States and were facing a YUGE Problem , They knew the BRITISH were coming back. The only chance of survival would be if 13 States STAYED united. ( the WHOLE reason for the Constitution ) The Borders of the United states was the borders of EACH and every STATE. > Today we have 50 States, a bunch of Territories, and numerous Embassy/Consulates. As those were added the Supreme Court ruled THEY TOO were ALSO the Borders of the United States... SO when the statement reads to the States it is referring tot he Borders of the United States. The Opening Statement is THE ONLY place in the ENTIRE Constitution where the word GAURANTEE is written. It is only written once and is attached to EACH of the three clauses. Guarantee: is a word that is both a noun and a verb: the noun means "a binding agreement" and the verb is the act of making that agreement. 1.st Clause " Shall Guarantee Republican from of Government " > Our ENTIRE Government is founded on this Clause . 2.nd Clause " Shall Guarantee PROTECTION of INVASION > Protecting the Border isn't an option ( and taking this away DURING a war is TREASON ) We are in a DECLARED war. > Our BORDERS IS OUR NATION 3.rd Clause "Shall Guarantee Protection of Domestic Violence > Our ENTIRE LEGAL SYSTEM is founded on this clause. The reason we have Police, ALSO their AUTHORITY is FOUNDED on this Clause . Because the word GUARANTEE is attached to it ALL gun Control laws are also founded on this clause . Allowing Illegals to RAPE MURDER and ABUSE us is Domestic Violence, Replacing Constitutional Rights Privileges and GUARANTEES with FORIGN LAWS is Domestic vIolence ( Climate Control laws are Foreign Laws They are United Nation Mandates ) Giving control of cities to ANTIFA is Domestic Violence .  GUARANTEE is the KEY- STONE to OUR NATION