US President Donald Trump says his planned arch will serve as a military complex. While the triumphal memorial has not been approved and is facing several legal challenges, the president says it will host snipers and drones upon its completion. The US military requested the giant arch be converted into a stronghold, citing national security concerns. There were plans for construction to start this month in the American capital; however, a small group have sued, claiming the project must first be approved by Congress.