Preparations for developing FOBS weapons are so advanced, that rockets have been launched by both Iran and North Korea on several occasions, with trajectory heading similar to that of future FOBS missiles.
Indeed, both Iranian Safir-1 and Qased SLVs have placed payloads into orbit, while heading toward the U.S. mainland approaching from the south west.
Meanwhile, North Korean Unha-3 and Kwangmyongsong SLVs have placed payloads into orbit while approaching the U.S. mainland from the south east.
This might be consistent with a probable doctrine of coordinated Irano-Korean nuclear preemptive simultaneous saturation strike, conducted from multiple directions in order to defeat the U.S. missile defence system, and to maximize the probability of success.
Keeping in mind that the doctrine of first use of nuclear strike is inherent to the FOBS weapon, as then devised by the Soviet Union.
North Korea being known to currently possess only less than a hundred nuclear warheads, the addition of at least the same number of Iranian warheads in the near future would be necessary for any preemptive thermonuclear carpet bombing of the U.S.A. mainland to be successful.
https://archive.is/DDLCF/cec12e8f979619359880069b717879a3e55dcfdf.jpg ; https://archive.is/DDLCF/2da8410f981a8d132c518f7b31cf9bd1b606fc5c/scr.png ; http://web.archive.org/web/20201117131556/https://i.imgur.com/i5ehkXg.jpg
▲ 1. Preparations for developing FOBS weapons are so advanced, that rockets have been launched by both Iran and North Korea on several occasions, with trajectory heading similar to that of a future FOBS missile.
