A survey flag is seen in the grass at Memorial Circle, where preparations are being made for US President Donald Trump's Triumphal Arch construction, in Washington, DC on September 30, 2026. Trump has said the massive arch he wants to build on a historic location will double as a base for drones and snipers. The proposed giant structure along the Potomac River near the Arlington National Cemetery is part of Trump's drive to put his personal stamp on the capital. (Photo by Jim WATSON / AFP via Getty Images)