Defence and Security Analyst Professor Michael Clarke analyses the battle for Severodonetsk, an eastern Ukrainian city in the Luhansk Oblast.The city is north east of the Siverskyi Donets river, which causes many problems for Ukrainian forces travelling e...

In a historic shift away from neutrality, both Finland and Sweden have taken steps towards joining NATO. The move is prompted by concern for their own security, in the wake of Russia's invasion of Ukraine. There's one problem though: NATO member Turkey co...