seek – v. to search for (“They are seeking a cure for cancer.”); to try to get (“She is seeking election to public office.”); to plan to do (“Electric power companies are seeking to reduce their use of coal.”)
negotiate – v. to talk about a problem or situation to find a common solution
ceasefire – n. a halt in fighting, usually by agreement
violate – v. to fail to obey or honor; to break (an agreement)
spread – v. to become longer or wider; to make or become widely known