By invading Ukraine, Vladimir Putin has demonstrated beyond any doubt that he is willing to use military force – including the threat of nuclear weapons – to achieve his geostrategic goals. The inescapable conclusion is that, for the people of Ukraine, deterrence has not worked. Attacking him was clearly insane, but Putin still went ahead. From now on, only one thing matters: we have to be militarily prepared for any scenario. A strong defense is the only way to change the Russian calculations.
In the days and weeks leading up to the invasion, the threat of economic sanctions and diplomatic efforts by Ukraine’s supporters failed to stop Putin from sending his troops to the border. Russia’s threat to the European security order
