Well, I think the directive is to each of us personally that are in Christ. The United States is not in Christ.
As for this verse:
Mat 10:34 Think not that I am come to send peace on earth: I came not to send peace, but a sword.
The Sword again is a reference to the Word of God.
Eph_6:17 And take the helmet of salvation,** and the sword of the Spirit, which is the word of God:
**
I believe God can protect each of us (that are in Christ) and if He has a purpose for calling you in this world then that is the purpose that is going take place and nobody is going to stop that from happening.
Consider that Paul:
2Co 11:23 Are they ministers of Christ? (I speak as a fool) I am more; in labours more abundant, in stripes above measure, in prisons more frequent, in deaths oft.
2Co 11:24 Of the Jews five times received I forty stripes save one.
2Co 11:25 Thrice was I beaten with rods, once was I stoned, thrice I suffered shipwreck, a night and a day I have been in the deep;
2Co 11:26 In journeyings often, in perils of waters, in perils of robbers, in perils by mine own countrymen, in perils by the heathen, in perils in the city, in perils in the wilderness, in perils in the sea, in perils among false brethren;
2Co 11:27 In weariness and painfulness, in watchings often, in hunger and thirst, in fastings often, in cold and nakedness.
2Co 11:28 Beside those things that are without, that which cometh upon me daily, the care of all the churches.
2Co 11:29 Who is weak, and I am not weak? who is offended, and I burn not?
2Co 11:30 If I must needs glory, I will glory of the things which concern mine infirmities.
2Co 11:31 The God and Father of our Lord Jesus Christ, which is blessed for evermore, knoweth that I lie not.
God protects us until we serve the purpose He has for us as Christians. It doesn’t mean we wont suffer persecutions and all these other things but those things will not take away the purpose that God has for us and we will NOT die until that purpose as Christians is completed.