The US State Department has officially cleared a $108.1 million hardware and sustainment package to keep Ukraine's frontline air defenses online, after there's not been much in the way of big dollar headlines concerning Washington's longtime military support to Kiev of late.

The cash injection targets the maintenance and optimization of the US-designed HAWK system - which is short for the "Homing All the Way Killer" surface-to-air missile system.

Depending on the exact missile variant deployed, the platform handles tactical interceptions of enemy aircraft, drones, and cruise missiles at operational ranges spanning 25 to 30 miles.