### Clue: Soldiers, with ten redeployed, about turn and go in again (2-5)
### Answer: RE-ENTER 
 ### Explanation: Definition: go in again
 RE(abbrev. for "Royal Engineers", the engineering branch of the British military) **plus**(with) **anagram of**(… redeployed) + **reversal of**(… turn) RE(about;with reference to).