I have heard several pastors state that this war refers to the  "tribes of

Israel" and not the tribe of Judah which is present Israel.   They talk
about
the lost tribes and that those tribes of Israel are spread  out in Europe and
America (since we are but a branch of Europe).  The tribe  of Judah is in Israel

gathering themselves right now in that land.  So what  one could assume if
these pastors are right is that America could very well be  the "unwalled
nation".  It is interesting to note that Americans today are  complaining
about the
borders being so open and how immigrants can come in with  no proper
documentation.   Time will  tell.