| skos:altLabel | - tests
- British nuclear tests
- Operation Grapple 1
- Britain's hydrogen bomb tests
- Britain’s nuclear testing programme
- Grapple
- Grapple 1
- Grapple 1-3
- Grapple 2/Orange Herald
- Grapple I
- Grapple X
- Grapple Y
- Grapple Z
- Grapple series of nuclear tests
- Joint Task Force Grapple
- Operation ''Grapple''
- Operation Grapple X, Round C1
- Operation Grapple#Grapple X (1 test)
- Operation Grapple#Grapple Y (1 test)
- Operation Grapple#Grapple Z series (4 tests)
- first H-bomb test
- first warheads
- its first hydrogen bombs
- tested an H-bomb
- conducted on and around Kiritimati by the United Kingdom
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