430. Upon encountering an enemy or those of authority #1
اَللَّهُمَّ إِنَّا نَجْعَلُكَ فِي نُحُورِهِمْ وَنَعُوذُ بِكَ مِنْ شُرُورِهِمْ
Allaahumma 'innaa naj'aluka fee nuhoorihim wa nA'oodhu bika min shuroorihim
Translation
O Allah, we ask You to restrain them by their necks and we seek refuge in You from their evil.
ReferenceSahih (Albani). Abu Dawud: 1537
Related Duas:
Dua for hopelessness
Dua of self-defense if one fears harm from anyone
Dua against the oppressor
Anxiety and Sorrow #1
Sermon to those who want to go to war # 1
Sermon to those who want to go to war # 3
Dua for not placing among wrongdoers
Dua for Debt settlement #2
Dua upon seeing a person who has been afflicted by an ilness or disability
Anxiety and Sorrow #2
Dua made against enemies
Prayer for victory over enemies