U.S. Immigration and Customs Enforcement made roughly 10,000 arrests [1] across the United States during a five-day period in late June 2026 [2].

This sudden increase in enforcement signals a shift in the administration's approach to migrant detentions and deportations. The surge coincides with a broader White House effort to intensify the removal of undocumented individuals from the country [3].

The spike in activity follows a recent Supreme Court decision that upheld birthright citizenship [1]. While the court maintained the legal standard for citizenship, the administration has responded by increasing the frequency and scale of enforcement operations [3].

Josh Hammer said to Sky News Australia, "You’re seeing ICE make a concerted effort to remove more illegal aliens."

The administration is also targeting specific practices related to the acquisition of citizenship. Hammer said, "You’re going to see a greater effort to prosecute and to crack down on the absolutely abominable industry known as so-called birth tourism."

Reports on the exact number of detainees vary slightly between sources. Some records indicate 10,000 arrests [1], while other reports state the number was over 10,000 [2]. The operations spanned the final days of June, marking a sharp increase in activity compared to previous weeks [2].

ICE agents conducted these operations nationwide, focusing on the Trump administration's goal of accelerating the deportation process [3]. The agency has not released a detailed breakdown of the specific locations, or the legal status, of all individuals detained during this five-day window.

“ICE made roughly 10,000 arrests across the United States during a five-day period in late June 2026.”

The rapid escalation in ICE arrests suggests that the administration is using the Supreme Court's birthright citizenship ruling as a catalyst to accelerate mass deportation efforts. By focusing on 'birth tourism' and increasing detention rates, the government is signaling a transition from policy debate to aggressive field enforcement to deter future migration.