Tactical nuclear weapons in Belarus: What does this mean?

Russian President Vladimir Putin's nuclear threats gained momentum over the weekend when he announced that he had struck a deal with Belarusian strongman Alexander Lukashenko to station tactical nuclear weapons in Belarus.

This is the first time since the mid-1990s that Moscow will base arms outside the country. In his televised statement on Saturday, Putin also said Russia will have completed the construction of a storage facility for these weapons in Belarus by July, although he did not specify when the transfer of weapons would take place.