On Thursday, US President Donald Trump announced the dismissal of Homeland Security Secretary Kristjen Nielsen. He praised her service to the country and highlighted her impressive accomplishments, especially in relation to border security. Trump's decision comes amid ongoing discussions about immigration and national security policies, reflecting his administration's focus on these issues.

In addition to the dismissal, Trump revealed that Nielsen would be appointed as a special envoy for the 'America Shield,' a new security initiative focused on the Western Hemisphere. This initiative is expected to be officially unveiled on Saturday, indicating a proactive approach by the Trump administration in addressing security challenges in the region.

Republican Senator Markwayne Mullin has been nominated to succeed Nielsen as Secretary of Homeland Security. This change in leadership may impact the direction of security policies moving forward, particularly regarding immigration enforcement and border management, which have been central themes of Trump's presidency.