The US has deployed the world’s largest aircraft carrier, the USS Gerald Ford, and about 15,000 troops to within striking distance of Venezuela.
It has insisted that the deployment – the largest by the US in the region since it invaded Panama in 1989 – is to combat drug trafficking.
On Thursday, Trump warned that US efforts to halt Venezuelan drug trafficking “by land” would begin “very soon”.
US forces have carried out at least 21 strikes on boats they said were carrying drugs, killing more than 80 people. However, the US has not provided evidence that the boats carried drugs.
The Venezuelan government believes the aim of the US action is to depose Maduro, whose re-election last year was denounced by the Venezuelan opposition and many foreign nations as rigged.
The US has also designated Cartel de los Soles, or Cartel of the Suns – a group it alleges is headed by Maduro – as a foreign terrorist organisation.
Labelling an organisation as a terrorist group gives US law enforcement and military agencies broader powers to target and dismantle it.
Venezuela’s foreign ministry has “categorically, firmly, and absolutely rejected” the designation.
Venezuela’s interior and justice minister Diosdado Cabello, who is alleged to be one of the high-ranking members of the cartel, has long called it an “invention”.
The US state department has insisted that the Cartel de los Soles not only exists, but that it has “corrupted Venezuela’s military, intelligence, legislature, and judiciary”.