Russian President Vladimir Putin says Moscow has tested a new intermediate-range missile in a strike on Ukraine and that it could use the weapon against countries that have allowed Kyiv to use their missiles to strike Russia.

The Ukrainian Air Force claims that Russia launched a conventionally armed intercontinental ballistic missile (ICBM) today at the city of Dnipro, in the center of the country. In either case, the act is unprecedented for the war in Ukraine and it would mark the first use of either one of these types of weapons in combat anywhere.

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.

President Joe Biden has reversed some of his own policy positions on Ukraine even as Russia has used new tactics in the conflict and warned of escalation. Ukraine says Russia launched an intercontinental ballistic missile,