Two men have been charged with travelling to Syria to engage in terrorism, police have said.
Yusuf Sawar and Mohammed Ahmed, both 21, from Handsworth, Birmingham, were arrested at Heathrow Airport on Monday after a flight from Turkey.
They will appear at Westminster Magistrates' Court later.
Separately, a 21-year-old man from the Sheldon area of Birmingham was arrested at Gatwick on suspicion of attending a "terrorist training camp" in Syria.
He was detained by counter-terrorism police on Friday after returning from Istanbul. He was later released on police bail pending further inquires.
Police had earlier said the arrest was not connected with the two men held at Heathrow earlier in the week.
The pair are suspected of travelling to Syria in May last year.
West Midlands Police said they have been charged under the Terrorism Act with engaging in conduct in preparation of terrorist acts.
The particulars of the charge accuse them of planning and travelling to Syria, via Turkey, in order to engage in acts of terrorism.