up to the war ... including mass killings of Igbo people , two military coups , andledup to the war ... including mass killings of Igbo people , two military coups , and

to oil 's resurgencealso contributedto oil 's resurgence

todayhave causedtoday

to a third of GDPcontributesto a third of GDP

it to post a net loss of ZAR3.1 billion ( $ 260 million ) in 2016causedit to post a net loss of ZAR3.1 billion ( $ 260 million ) in 2016

to about 30 per cent cut in the countryhas ledto about 30 per cent cut in the country

in the creation of the Republic of Biafra toresultedin the creation of the Republic of Biafra to

disruption to their oil exportscausesdisruption to their oil exports

to their oil exportscausesto their oil exports

in the creation of the Republic of Biafra to protect the Easterners from annihilationresultedin the creation of the Republic of Biafra to protect the Easterners from annihilation

the pylons and track work(passive) designed bythe pylons and track work

to persist ... and that oil prices around $ 40 are set to spur demandare setto persist ... and that oil prices around $ 40 are set to spur demand

to a peace agreementledto a peace agreement

to his arrestleadingto his arrest

to order immigrants in the countrycaused then president Shehu Shagarito order immigrants in the country

to a decline of nearly 25 % of country s production inhas leadto a decline of nearly 25 % of country s production in

follow - through buyinghave promptedfollow - through buying

to more than 100 killings and both the editor and the cartoonistsledto more than 100 killings and both the editor and the cartoonists

dozens of deathscausesdozens of deaths

alsohas ... contributedalso

to a number ofleadingto a number of

to a religious warcould leadto a religious war

The UK government - funded Countdown partnership(passive) led byThe UK government - funded Countdown partnership

oil output drop , price spikecausesoil output drop , price spike

oil output dropcausesoil output drop

to Open Storycontributedto Open Story

sufferingcausing tremendoussuffering

to a number of states experiencing curfews asleadingto a number of states experiencing curfews as

to the problemcontributedto the problem

tremendous sufferingcausingtremendous suffering

to higher settlementalso contributesto higher settlement

tremendouscausingtremendous

concernis causingconcern

to the increase in human traffickinghas ... contributedto the increase in human trafficking

to callshave ledto calls

to six oil spillshas ledto six oil spills

a disruption in supplyhas causeda disruption in supply

to conflictsledto conflicts

the carrier to reconsider raising cash through an initial public offering of its local unit in Lagosmay causethe carrier to reconsider raising cash through an initial public offering of its local unit in Lagos

checkpoints on major roadways and try to immunize children as they enter or leave areas dominated by Boko Haramsetcheckpoints on major roadways and try to immunize children as they enter or leave areas dominated by Boko Haram