ABC News photo editors chose some of their favorite news images of the week for this collection. <br> <br> Revelers celebrate Ash Monday by participating in a colorful "flour war," a traditional festivity marking the end of the carnival season and the start of the 40-day Lent period until the Orthodox Easter, in the port town of Galaxidi, Greece, Feb. 27, 2023.

People gather to mark one year since Russia's invasion of Ukraine, in Hallandale Beach, Fla., Feb. 24, 2023.

Ukrainian military medics treat their wounded comrade at a field hospital near Bakhmut, Ukraine, Feb. 26, 2023.

Britain's William, Prince of Wales, and Catherine, Princess of Wales, sit for an official photo with The Prince of Wales' company during a visit to the 1st Battalion Welsh Guards for St. David's Day Parade at the Combermere Barracks in Windsor, west of London, on March 1, 2023.

A prison agent guards gang members as they are processed at their arrival after 2,000 were transferred to the Terrorism Confinement Center, according to El Salvador's President Nayib Bukele, in Tecoluca, El Salvador, in this handout distributed to Reuters on Feb. 24, 2023.

Jasmine, 23, paints amid the rubble in the city of Jindires on Feb. 28, 2023, near Aleppo, Syria.

Teddy bears and toys, representing children abducted during the war in Ukraine, are seen on the ground during an event organized by Avaaz NGO and Ukrainian refugees at the Rond-point Schuman in Brussels on Feb. 23, 2023, to mark the first anniversary of the Russian invasion of Ukraine.

People rally in the rain to show support for the Biden administration's student debt relief plan in front of the U.S. Supreme Court the evening before it was scheduled to hear arguments about the plan's constitutionality on Feb. 27, 2023, in Washington, D.C. Organized by political groups including MoveOn.org and We The 45 Million, the rally was held on the eve of arguments in Biden v. Nebraska and Department of Education v. Brown, which could decide the fate of the program that aims to forgive an estimated $400 billion in student debt for 26 million borrowers.

The site where two trains collided is seen near the city of Larissa, Greece, March 1, 2023.

Zubaida Abd Elaal, 87, a grandmother to 13 grandchildren, learns how to read and write in a literacy school in the El-Menoufia governorate, north of Cairo, Egypt, Feb. 23, 2023. Zubaida says she has wanted to learn to read and write for years but was stopped by her father and then her husband.

South Koreans carry torches as they march on the street during a reenactment of the March First Independence Movement against Japanese during the 104th Independence Movement Day ceremony on Feb. 28, 2023, in Cheonan, South Korea. South Koreans celebrate the public holiday marking the 1919 civilian uprising against Japanese rule, which colonized the Korean peninsula from 1910 to 1945.

A bird sits on an electricity wire as the sun rises over Kathmandu, Nepal, on March 2, 2023.