US Border Patrol chief to retire at end of June

US penalises Kosovo after violent unrest

Kosovo-Serbia row leaves Nato peacekeepers under attack

How legal immigration might solve two of America's toughest problems

A Maine state trooper shot at a truck approaching the US-Canada border with a sign indicating there was an explosive on board, police say

Chaos at UK airports as nationwide border system fails

Belgorod: Russian paramilitary group vows more incursions

Ukraine war: Russia's Shoigu vows 'harsh response' after Belgorod incursion

Ukraine war: US distances itself from Belgorod incursion into Russia

Madeleine McCann disappearance: A timeline

8-year-old migrant girl who died in US Border Patrol custody was treated for flu several days before her death, authorities say

How Joe Biden and Donald Trump's border policies compare