Which Central African country won it's independent from Portugal but then suffered through a civil war that lasted for decades before the count was able to establish a stable government?

In this quote british secretary of state william pitt is urging connecticut toa) hold the front from invading native tribes. b) raise troops and fight the french in canada. c) support the french in their efforts to hold on to canada. d) reject war with the french in hopes of ending the conflict.