Explanation
The Battle of Khandaq (Ahzab) was fought on 5 A. H (627).
Ghazwa e Ahzab and Battle of the Trench is the second name of Ghazwa-e-Khandak
Muslims 3000
10000 Munafiqeen were in Ghazwa-e-Khandaq
The length of trench was 5 kilometers.
Additional information
it was the 30-day-long fight of Yathrib by Arabian and Jewish tribes
Hazrat Salman Al-Farsi suggests digging the trench at the time of the Battle of Khandaq
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