- Ukrainian troops usually won't fire their HIMARS without targeting data from the US, officials said.
- The US-provided HIMARS have been a key weapon for Ukrainian forces throughout the war.
- Ukraine has repeatedly asked for longer-range missiles to make the weapons more deadly.
The Ukrainian military almost never fires the US-provided High Mobility Artillery Rocket Systems (HIMARS) that have devastated Russian forces unless they receive targeting data from the US, The Washington Post reported, citing Ukrainian officials.