In scaling back France's military footprint in the Sahel, President Emmanuel Macron is betting that Paris can extract itself from strategic gridlock and that local and international allies will step up to help quell jihadist insurgencies in Africa's most volatile region. The drawdown of France's 5,100-strong Barkhane force marks the latest move by Macron to reframe Paris's relation with African nations, laid out in a 2017 speech in Ouagadougou...