Machine guns, poison gas, tanks!
Dhimmis under the Umayyad Empire were the Jews and the
Christians. The term dhimmi is a historical term which indicates any non Muslim
citizens living within a Muslim Empire. Dhimmi is a term that actually means
protected person. Dhimmis in the Umayyad Empire were excluded from performing
certain duties and political rights reserved for the Muslims. They were able to
enjoy almost equal rights as the Muslims. The Dhimmis in Umayyad Empire also
had to pay certain taxes that were not applicable for the Muslims.
The British had tons of internal and domestic problems to face their own, so basically from the beginning (early 1600's) they entered into a period of salutary neglect (where they didn't enforce their own laws)
Hope this helps!