As I stated in the preface to Book I in 1945 only one man, President Truman could push the button or make the decision to use nuclear weapons in combat. Now that decision rests with thousands of individuals worldwide and is growing.
In June of 2019, the Iranians using a Khordad SAM shot down a US RQ-4 drone over the Straits of Hormuz. While the US drones can carry AGM-114 Hellfire air to ground, and several different variants of AIM-92 air to air missiles, the SU-27 carries significantly longer range Vympel R-27 and R-73 air to air missiles. The US cannot take out the aggressive Russian fighters because, even though they are within range during the harassment, the next time the Russian planes will merely stay outside the drone's range and shoot it down. The drone was downed on 3-14-2023 local time.
In Book III of the First Strike Series, Armageddon, the US ABM system must deal with the Chinese DF-17 FOBS HGV weapon. The Chinese started to develop the Fractional Orbit Bombardment System arming it with a Hypersonic Glide Vehicle in response to G.W Bush's decision to pull out of the 1979 SALT treaty, The DF-17 launches the HGV into a low earth orbit about 150 miles above the surface of the earth and the uses it hypersonic rockets to target the reentry point and target.