If China or Russia wanted to strike American soil with impunity, they can do so from whichever azimuth they prefer. They had better have a plan for dealing wit

If China or Russia wanted to strike American soil with impunity, they can do so from whichever azimuth they prefer. They had better have a plan for dealing with our submarines, or "impunity" is off the table, no matter where their MIRVs come from or how many there are.