The Soviet military often used unpowered balloons before World War II, and they made a resurgence in the Cold War. Now they’re being used in the Ukraine war, along with other low-tech devices.
President Biden hosted Brazil’s new president on Friday in a refresh of the countries’ relations. The two leaders agree on the Amazon but are split on Ukraine.
The Brazilian leader, Luiz Inácio Lula da Silva, who met with President Biden at the White House, said he’s interested in helping negotiate a path to peace.