HGV.

This is coolbert:

"HGVs are carried on top of medium and long-range rocket boosters, where the front warhead section detaches just below the upper atmosphere. This requirement to be ‘boosted’ before being released also led them to be called hypersonic ‘boost glide vehicles.’"

HGV = Hypersonic Glide Vehicle.

"Japan Releases Video Of Hypersonic Glide Vehicle Testing In The U.S."

From The Aviationist | PARTH SATAM & STEFANO D'URSO | July 7, 2024.

"Japan is strengthening its stand-off defense capabilities to quickly and remotely intercept and eliminate invading forces."  [video thanks to You Tube]

"Japan conducted the first test of its hypersonic weapon on Mar. 23, 2024 in the United States, reports on Jul. 4 said quoting Tokyo’s ATLA (Acquisition Technology and Logistics Agency). The ATLA is a part of the MoD (Ministry of Defense)."

Japanese HGV able to maneuver in-flight. Warhead descending on target with a near vertical downward trajectory! Sounds kind of like Rods from God kinetic bombardment concept!

Sounds like something even more formidable that what the USA has it it's inventory right now!

Bully for the Japanese. bully: adjective -  EXCELLENT —often used in interjectional expressions. [an archaic use]

coolbert.