Match the following:.
Part A
1. upper-class
2. breaking down an already-smaller portion of land in exchange for services and protection
3. a man who would give protection to the lord in exchange for land
4. a system of cooperation among peoples which was basically an exchange of land for protection
5. a call to appear in court
6. a group of soldiers ready to do battle
Part B
a. nobility vassal
b. feudalism
c. standing army
d. summons
e. aristocrat
f. subinfeudation