Thames Valley Police said the demonstration was "peaceful"
Thirty-three people were arrested and 14 charged after a demonstration at the Atomic Weapons Establishment (AWE) in Berkshire.
The arrests were made after dozens of people gathered at Aldermaston to mark World Disarmament Week.
They were concerned the facilities are to be used to design and manufacture a new generation of nuclear warheads.
Of the 14 people charged, 12 were accused of unlawful obstruction of the highway.
The other two people - a 78-year-old woman and a man, 68 - were charged with displaying writing, a sign or other visible representation which was threatening, abusive or insulting and likely to cause harassment, alarm or distress, Thames Valley Police said.
All 14 will appear at either Newbury Magistrates' Court or Reading Magistrates' Court between 6 and 12 November.
Fifteen people were given cautions for unlawful obstruction of the highway and three were issued with fixed penalty notices for the same offence , police added.
AWE provides the warheads for Trident - the submarine-launched missile system that constitutes the UK's nuclear deterrent.
The protest was organised by Trident Ploughshares and supported by the Campaign for Nuclear Disarmament (CND), Block the Builders and the Aldermaston Women's Peace Camp group.
Police described the demonstration as "peaceful with no violent incidents".