The slogan “fifty-four forty or fight! ” dealt with which disputed u. s.
border with another nation?
(a) maine and canada
(b) oregon and canada
(c) alaska and canada
(d) texas and mexico
(e) california and mexico

The slogan "Fifty-four Forty or Fight dealt with B. OREGON AND CANADA dispute between the United States and another nation.

The other nation was the United Kingdom. Both the United States and United Kingdom claimed the Oregon Territory.

The term "Fifty-four Forty or Fight!" was taken from latitude of Oregon. The northern boundary of Oregon was the latitude line of 54° , 40 minutes. 

The  pan-african movement  was an "emotional, cultural, psychological and ideological  movement  that began among the  african  dispora in the western hemisphere, for a closer  purpose, so that  african  people could feel secure, attain political, economic as well as psychological power visa vis other races or world regions" .