Who did companies call on to crush labor unions during strikes? a. paid immigrantsb. military troopsc. government officialsd. labor union heads

I believe they called upon military troops.

It developed as a reaction to the impact of european colonialism in africa on peoples of african descent. in the  mid-20th century, activists in africa adopted pan-africanism as a rallying cry for independence from colonial rule. some african pan-africanists sought to unite the continent as one independenthope it was useful