Members of a French air force detachment of personnel and Rafale jets stationed on a monthslong deployment at the Siauliai Air Base in Lithuania on a NATO air-policing mission play chess in the detachment's headquarters at the base on Monday, April 20, 2026. (AP Photo/John Leicester)

A member of the French air wing of Rafale fighters jets deployed on a NATO air-policing mission at the Siauliai Air Base in Lithuania wears a mission badge on her arm on Sunday, April 19, 2026 (AP Photo/John Leicester).

Romanian air force Col. Mihaita Marin, commander of a Romanian air wing of F-16 fighter jets deployed at the Siauliai Air Base in Lithuania on a NATO air-policing mission, speaks during an interview on Monday, April 20, 2026. (AP Photo/John Leicester)

A flight-crew member climbs into the cockpit of a French air force Rafale fighter jet stationed on a NATO air-policing mission at the Siauliai Air Base in Lithuania as another member of the French detachment stands at the foot of the ladder on Sunday, April 19, 2026 (AP Photo/John Leicester)

Britain's Home Secretary Shabana Mahmood, left, signs an agreement with France's Interior Minister Laurent Nunez during her visit in Dunkirk, France, Thursday April 23, 2026. (Stefan Rousseau/Pool Photo via AP)

A French police car patrols on the beach of Zuydcoote, near Dunkirk, northern France, Thursday, April 23, 2026. (AP Photo/Michel Euler)

Britain's Home Secretary Shabana Mahmood, right, meets French police officers with France's Interior Minister Laurent Nunez on the site of a new detention centre that is being built in Dunkirk, France, Thursday April 23, 2026. (Stefan Rousseau/Pool Photo via AP)

A French police officer walks on the beach of Zuydcoote, near Dunkirk, northern France, Thursday, April 23, 2026. (AP Photo/Michel Euler)