President Faure Gnassingbe of Togo seeks to prolong his family's 48-year rule in elections on Saturday.
Guides and background
Tikrit: Iraq's city of palaces
Profile of the Iraqi city of Tikrit, known as the birthplace of former Iraqi president Saddam Hussein.
Is IS shaping Boko Haram media?
After launching a Twitter account there are signs the African movement is influenced by the expansionist Islamic State
Profile: Syria's ruling Baath Party
How a Arab nationalist movement came to infiltrate every aspect of public life
IS encroaches on al-Qaeda lands
The Islamic State group is forging links with militants across North Africa and the Arabian Peninsula, challenging its al-Qaeda rivals.
Features & Analysis
Battle for Syria's media
How Syrian state TV reports the conflict - and how opposition activists try to put their side across
How are social media sites changing China?
How sites such as Weibo, Renren and YouKu are changing the way news is made and consumed in China
Governments censoring the web
Why states routinely filter what its citizens see on the internet and how web-users can avoid censorship
Russians learn to love the bomb
Sections of the Russian media view nuclear war as a realistic possibility