Taliban and ISIS insurgents illegally cut timber and mine minerals to fund their terrorist activities, local officials and residents say.
The commander of the group said they surrendered after realising "we were destroying our own country".
Iran has a long history of supplying money and arms to the Taliban, says Mullah Manan Niazi, the deputy leader of a Taliban splinter group led by Mullah Muhammad Rasool.
A coalition air strike targeted a meeting of ISIS fighters in Sawkai district, and at least one top terrorist commander was among the dead.
The morale of Afghan forces is now stronger than ever, and armed opposition groups have no choice but to join the peace process, say officials.
Caitlan Coleman and Joshua Boyle were kidnapped by the Taliban while backpacking in Afghanistan in 2012, and they appeared in a hostage video in December last year pleading for their release.
At least 14 Taliban members in Jawzjan, Badakhshan and Kunar provinces surrendered to the government and joined the peace process over the past few weeks.
Many Pakistani Shia pilgrims are not coming back from Iran, an intelligence report says, raising concerns they have been recruited to fight in Syria for the Zainebiyoun Brigade.
Expanding the secure zone will bring many benefits, says the Capital Region Independent Development Authority.
The Ministry of Defence plans to recruit 20,000 civilians with military experience to prevent insecure areas from falling into the hands of insurgents.
Calls are growing to expand the number of women working toward ending the decades-long strife.
Afghan military operations have switched emphasis from defensive to offensive, say officials.