whereas the Taliban did not

[meliss]

"The government and international forces had to suppress guerrilla activity — the low-level improvised explosive devices, assassinations, and intimidation — in every district whereas the Taliban did not." Source: The American War in Afghanistan by Carter Malkasian

The Taliban did not what? To suppress guerrilla activity? If so, shouldn't it be "the Taliban had not"?

 

[5jj]

"The government and international forces had to suppress guerrilla activity — the low-level improvised explosive devices, assassinations, and intimidation — in every district whereas the Taliban did not (have to (do that))."