Poland to supply long-range missiles to Ukraine. So then, ATACMS is coming?
ATACMS is the long-range (~300mi) option for the HIMARS system, currently supplied by the United States to Ukraine for use in the war against Russia, which the US wants to prevent from spilling over into Russian Federation territory.
In order to accomplish this, they have supplied only short-range and intermediate range missiles for the HIMARS system, so Ukraine lacked the ability to strike into Russian territory.
However, Poland is now supplying long-range missiles to Ukraine, giving them the option of striking Crimea from their current positions.
So, it's only a matter of time before HIMARS sees supplies of ATACMS. Which, should give Ukraine the ability to deny resupply via the Crimean bridge, which was previously their primary supply route, and is expected to be fully operational again by July 2023.