President-elect Donald Trump announced plans to declare a national emergency on border security to facilitate the mass deportation of undocumented migrants using the US military.

Immigration was a focal point in his campaign, with promises to deport millions and secure the Mexico border, following high migrant crossings during President Joe Biden's term.

On Truth Social, Trump confirmed his intentions, aligning with a conservative activist's post about reversing 'the Biden invasion.' Trump's recent electoral victory over Democratic Vice President Kamala Harris has allowed him to appoint immigration hardliners, including former ICE acting chief Tom Homan as 'border czar.' Homan warned undocumented immigrants to 'start packing now.'

There are an estimated 11 million undocumented people in the US, with Trump's plans potentially affecting around 20 million families.

Trump's approach has heightened concerns over border management, as he describes migrant activity as an 'invasion.' His campaign rhetoric often vilified immigrants while misrepresenting immigration data.

Despite offering few specifics, Trump referenced using the Alien Enemies Act of 1798, which critics argue is outdated, having last been used for Japanese-American internment during WWII.

Border patrol encounters with migrants from Mexico are currently similar to 2020 levels, matching the migration figures from Trump's first term after peaking in December 2023.