The stakes have never been higher in the Ukraine-Russia war.
In the week that saw the conflict pass its 1000th day, Western powers substantially boosted Ukraine's military arsenal - and the Kremlin made its loudest threats yet of a nuclear strike.
Here is how the last week played out - and what it means.
Late on Sunday night, reports emerged that outgoing US President Joe Biden had given Ukraine permission to use longer-range ATACMS missiles to strike targets inside Russia.
The move marked a major policy change by Washington - which for months had refused Ukraine’s requests to use the missiles beyond its own borders.
After the decision was leaked to the press, a volley of ATACMS missiles were fired by Ukraine into Russia’s Bryansk region.
The Kremlin said six were fired, with five intercepted, while anonymous US officials claimed it was eight, with two intercepted.
