Russian President Vladimir Putin's frequent reminders of his country's nuclear might has raised concerns he may use small tactical nuclear weapons against Ukraine. 

Digital foreign editor Chris Zappone speaks to Nathanael Cooper about Russia's nuclear arsenal.

Russian President Vladimir Putin's frequent reminders of his country's nuclear might has raised concerns he may use small tactical nuclear weapons against Ukraine.&nbsp;
Digital foreign editor Chris Zappone speaks to Nathanael Cooper about Russia's nuclear arsenal.

News and current affairs from Sydney and Melbourne, Australia.

News and current affairs from Sydney and Melbourne, Australia.

News and current affairs from Melbourne, Australia.

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