Russia is fighting three undeclared wars. Its fourth – an internal struggle for Russia itself – might be looming

Now entering its seventh month, Vladimir Putin’s war against Ukraine shows no sign of resolution.

It has become a grim battle over territory between dug-in forces, resembling the conflicts of last century instead of the complex melange of covert operations and hybrid warfare that supposedly characterise contemporary “grey zone” contests.

Both sides are playing to their strengths: Russia to its dominance in firepower, and Ukraine to its ability to corrode the invader by targeting its supply lines.