The sense of paranoia runs deepest in eastern Ukraine, where suspicions of treason committed by locals divide formerly occupied villages like Kutuzivka.
For Mari Saito's latest contributions to The Japan Times, see below:
Journalists interviewed more than 90 residents, reviewing photographic and video evidence these locals shared and examining documents left behind by the Russians.
She was one of the 10 million displaced Ukrainians whose lives have been upended by Russia's invasion. Her newfound status felt alien, something belonging to survivors of past wars.
As of Tuesday, 70 Japanese men — including 50 former members of the Self-Defense Forces and two veterans of the French Foreign Legion — had applied to be volunteers, the report said.
Mitsuki Ono led the way behind only American Chloe Kim, scoring 83.75 points in her second run which was four points short of Kim.
Taipei has stealthily sourced technology, components and talent from at least seven nations to help it build a fleet with the potential to exact a heavy toll on any Chinese attack.
Alex Martin and Mari Saito bring us two stories from Tohoku, a decade after the Great East Japan Earthquake.
Thousands of visitors from across Japan have made trips to the phone, including people who have lost relatives to sickness and suicide.
Some on the Tokyo organizing committee believe it is important for Mori to "quietly overcome" the crisis and for officials to do all they can to "protect" him from the public fallout.
Support for the prime minister's Cabinet has dropped from 39% last month to 33%, with disapproval rising 10 percentage points to 45%, according to a poll by the Asahi newspaper.