In August, Donald Trump started a campaign of aggression against Venezuela. The US president first launched airstrikes on alleged drug boats off the coast of the South American country – a move largely condemned as extrajudicial killings – then deployed US naval assets in the Caribbean. The Guardian’s Latin America correspondent, Tom Phillips, explains why the claims the targeted boats were carrying drugs destined for the US are dubious and what Trump’s actions could mean for the Venezuelan president, Nicolás Maduro