To protect soldiers and supplies from us bombing the vietcong built

Congress could only request money and had no power to tax; each state made its own money; there was no national court system. which one of these weaknesses do you believe was the most important to correct?

Following archduke franz ferdinand's assassination, austro-hungarian leaders: a. aided the ottoman empire in its campaign to keep serbia under its control. b. executed nearly all prominent serbs living in austria-hungary c. threatened to invade serbia if serb leaders did not agree to a set of strict demands. d.. formed an alliance with great britain to protect austria-hungary from future attacks.

What were some effects in world war 1 in europe ? ( and only in europe)