BRITAIN-ATTACK

A British army soldier (L) and a police officer (R) secure an entrance to the Ministry of Defence in central London on May 25, 2017, after Operation Temperer was put into force putting soldiers under police command on British streets in response to the May 22 terror attack at the Manchester Arena. Police said they arrested two men Thursday in the Manchester area in connection with the deadly bombing of an Ariana Grande pop concert, while a detained woman was released without charges. Britain has raised its terror alert to the maximum level and ordered troops to protect strategic sites after 22 people were killed in a suicide bomb attack on a Manchester pop concert. / AFP PHOTO / NIKLAS HALLE'N (Photo credit should read NIKLAS HALLE'N/AFP via Getty Images)