Am. Hist. to 1791, Unit 6 Vocabulary Study online at quizlet.com/_1rq6va 1. alliance a close association of nations or other groups, formed to advance common interests or causes 2. ambush a surprise attack 3. blockade cut off an area by means of troops or warships to stop supplies or people from coming in or going out; to close off a country's ports 4. boycott to refuse to buy items from a particular country 5. constitution a formal plan of government 6. desert to leave without permission 7. dissent disagreement with or opposition to an opinion 8. guerrilla warfare a hit-and-run technique use in fighting a war; fighting by small bands of warriors using tactics such as sudden ambushes 9. inflation a continuous rise in the price of goods and services 10. mercenary paid soldier who serves in the army of a foreign country 11. militia a group of citizens trained to fight in emergencies 12. neutral taking no side in a conflict 13. petition a formal request 14. preamble the introduction to a formal document, especially the Constitution 15. propaganda idea or information designed and spread to influence opinion 16. ratify to give official approval to 17. recruit to enlist soldiers in the Army 18. repeal to cancel an act or law 19. resolution a formal expression of opinion 20. revenue incoming money