task force; response team; squad; unit
A group formed to deal with a specific problem or crisis, such as a disaster, outbreak, or security incident.
The government set up a task force to prevent the spread of the infectious disease.
After the cyberattack, a response team was immediately convened.
Compound of 対策 (taisaku, 'countermeasure') and チーム (chīmu, 'team'). The word follows a common pattern for naming specialized groups in modern Japanese.