the Volunteer Reserve Forces
noun/ðə ˌvɒləntɪə rɪˈzɜːv fɔːsɪz/
/ðə ˌvɑːləntɪr rɪˈzɜːrv fɔːrsɪz/
[plural]- the parts of the British armed forces for people who are volunteers and train in their free time so they can be used in a national emergency
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the Volunteer Reserve Forces