A British man who allegedly fought against so-called Islamic State in Syria has been accused of terror offences.
Josh Walker, from Bristol, is charged under Section 58 of the Terrorism Act 2000.
Mr Walker, aged 26, who lives in Aberystwyth, is due before Westminster Magistrates' Court on Friday, South Wales Police said.
He was arrested at Gatwick Airport by counter terror officers, last December.
He had returned to the UK on 29 December and was detained at the airport by the Welsh Extremism and Counter Terrorism Unit.
The charge is "collecting or making a record of information that is of a kind likely to be useful to a person committing or preparing an act of terrorism".