The United States is conducting tests of the ARRW hypersonic missile by mounting it on the B-1B bomber, increasing the potential military threat to Russia and China. The installation of LAM pylons on the B-1B for ARRW missile operation is underway, linked to extending the B-1B’s service life and the long-term operation of the B-52. The introduction of Dark Eagle systems is also being pursued as a response to Russia’s Kinzhal and Zircon missiles.