The contract Chain was a series of a league, federation, and treaties formed and specified during the 17th century, mainly between the Haudenosaunee or Iroquois Confederacy and the British colonies of North America, joined with Indian tribes. First elaborated in specified degree area of New York at a time of cruelty and social uncertainty for the community and Native Americans, the Iroquois, and English committee, and future treaties were based on supporting peace and solidity to conserve and sustain trade. They inscribe issues of inhabitant settlement and tried to subdue cruelty between colonists and the tribes of Indian.They even declared its neutrality.
Ethiopia purchased modern weapons from France and Russia.
Ethiopia won its wars against Italy and has successfully secured its sovereignty because they bought some artillery pieces from Russia. Russia also supported Ethiopia with military advisers and army training. United Kingdom and France also supported Ethiopia to prevent Italy from becoming their colonial competitor.