According to the prosecutor’s office, it's because they're accused of having links to the network of US-based cleric Fethullah Gulen.
Ankara says it was him who orchestrated a 2016 attempted coup.
Those who are facing jailtime include three colonels, eight majors and 10 lieutenants.
Afghan Taliban says 400 killed in Pakistan air strike on Kabul hospital
At least 400 people have been killed and 250 injured in an air strike by Pakistan on a drug users' rehabilitation hospital in Kabul, a spokesman of the Afghan Taliban government said on Tuesday, a sharp escalation in the conflict between the neighbours.
Bomb attacks kill at least 23 in Nigeria's Maiduguri
At least 23 people have been killed and 108 injured in suspected multiple bomb attacks in Maiduguri city, capital of Nigeria's insurgency-hit northeastern state of Borno, the state police command said in a statement late on Monday.
Five countries warn against major Israeli ground offensive in Lebanon
A "significant Israeli ground offensive" in Lebanon must be averted since it could have devastating humanitarian consequences, Canada, France, Germany, Italy, and Britain have said in a joint statement on Monday.
Fire breaks out at Qatar's Industrial Area after missile interception
Qatar's Ministry of Interior has announced that its civil defence forces are responding to a fire that broke out at its Industrial Area on Tuesday due to fallen shrapnel from a missile interception.
Kuwait arrests Hezbollah-linked cell in security crackdown
Kuwaiti security authorities have uncovered and arrested a cell linked to the banned organisation Hezbollah that was planning to destabilise the country and recruit new members.
