Why did german u boats attack allied ships such as the lusitania?

Once the plague became airborne, how could it then be spread?

Select the five weaknesses of the articles of confederation. congress could not declare war or establish an army. congress could not levy taxes. congress could not control trade. not all the states were represented in congress. no national court system. no executive to enforce the laws. congress could not negotiate with foreign governments. the national government could not borrow money. nine of the states had to agree to pass a law.

Americans who supported manifest destiny believed that the united states should