Answer:
During the period that the Articles of Confederation were ratified, America was still at war with Great Britain. Because of that the Colonies were still trying to define themselves as a united country but struggling on how to do so.
Explanation:
United Kingdom and Brazil
ANSWER: The tank was developed as a means to break the stalemate on the Western Front in World War I. Military technology of the time favored the defense. Even if an attack did succeed, it was almost impossible to exploit the breach before the enemy rushed in reinforcements to stabilize the front.
EXPLANATION: HOPE THIS HELPS!