abc NEWS – Ukrainian troops are in the early stages of a counteroffensive.

As Russia continues its nearly 16-month-long invasion of neighboring Ukraine, political turmoil has erupted in Moscow while Kyiv tries to take back territory.

A feud between Yevgeny Prigozhin, head of the Russian paramilitary organization Wagner Group, and Russia’s top military brass escalated as Prigozhin’s forces left the front line in Ukraine and marched across the border to seize a key Russian city. They then marched north toward Russia’s capital, seemingly unopposed, before turning around just hours later. The short-lived rebellion was described by international observers as the most significant challenge to Russian President Vladimir Putin’s authority in his more than 20 years of rule.

Meanwhile, Ukrainian troops are in the early stages of a counteroffensive to reclaim the almost one-fifth of Ukraine’s territory that is under Russian control.

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