Drone surveillance and warfare

In this photo released on Friday, Jan. 15, 2021, by the Iranian Revolutionary Guard, missiles are launched in a drill in Iran. Iran's paramilitary Revolutionary Guard forces on Friday held a military exercise involving ballistic missiles and drones in the country's central desert, state TV reported, amid heightened tensions over Tehran's nuclear program and a U.S. pressure campaign against the Islamic Republic. (Iranian Revolutionary Guard/Sepahnews via AP)

In this photo released Tuesday, Jan. 5, 2021 by the Iranian army, Chief of the General Staff of the Armed Forces Gen. Mohammad Hossein Bagheri, center, listens to an explanation while visiting at a display of drones prior to a drill, Iran. The Iranian military on Tuesday began a wide-ranging, two-day aerial drill in the country's north, state media reported, featuring combat and surveillance unmanned aircraft, as well as naval drones dispatched from vessels in Iran's southern waters. (Iranian Army via AP)

Supporters of the Popular Mobilization Forces hold a poster of Abu Mahdi al-Muhandis, deputy commander of the Popular Mobilization Forces, front, and General Qassem Soleimani, head of Iran's Quds force during a protest, in Tahrir Square, Iraq, Sunday, Jan. 3, 2021. Thousands of Iraqis converged on a landmark central square in Baghdad on Sunday to commemorate the anniversary of the killing of Soleimanil and al-Muhandis in a U.S. drone strike. (AP Photo/Khalid Moha

An aerial photo shows oil tankers load crude oil at Iraq's Al-Basra Offshore Terminal in Basra, Iraq, Sunday, Dec. 27, 2020. (AP Photo/Nabil al-Jurani)

FILE - This Nov. 4, 2020, file satellite photo by Maxar Technologies shows Iran's Fordo nuclear site. Iran has told international nuclear inspectors it plans to enrich uranium up to 20% at its underground Fordo nuclear facility, a technical step away from weapons-grade levels, as it increases pressure on the West over its tattered atomic deal. (Maxar Technologies via AP, File)

People run following an explosion at the airport in Aden, Yemen, shortly after a plane carrying the newly formed Cabinet landed on Wednesday, Dec. 30, 2020. No one on board the government plane was hurt but initial reports said several people at the airport were killed. (AP Photo)

A U.S. Air Force B-52H “Stratofortress” from Minot Air Force Base, N.D., is refueled by a KC-135 “Stratotanker” in the U.S. Central Command area of responsibility Wednesday, Dec. 30, 2020. The United States flew strategic bombers over the Persian Gulf on Wednesday for the second time this month, a show of force meant to deter Iran from attacking American or allied targets in the Middle East. (Senior Airman Roslyn Ward/U.S. Air Force via AP)

FILE - In this Thursday, Aug. 8, 2019, file photo, a drone flies in a residential neighborhood in Upper Moreland, Pa. Federal officials are outlining new rules that will let operators fly small drones over people and at night. (AP Photo/Matt Rourke, File)

A group of protesters burn pictures of the U.S. President Donald Trump, top, and the President-elect Joe Biden in a gathering in front of Iranian Foreign Ministry on Saturday, Nov. 28, 2020, a day after the killing of Mohsen Fakhrizadeh an Iranian scientist linked to the country's nuclear program by unknown assailants near Tehran. (AP Photo/Vahid Salemi)

FILE - In this July 30, 2014 file photo US and German flags fly outside the Ramstein Air Base, Germany. Germany's top administrative court has ruled that the country's government can't be forced to ensure that U.S. drone strikes controlled via an American military base on German territory are in line with international law. The decision Wednesday, Nov. 25, 2020 by the Federal Administrative Court in Leipzig overturns a ruling last year that held the German government partly responsible for making sure that such military operations comply with international law. (AP Photo/Lucas Jackson, Pool, File)