I believe the answer is: It was weakened and could not provide military protection.
Land reclamation refers to the process of creating new land by elevating the land that covered by the sea or lake and extracting the water out.
Due to the large budget for this project, the government have less money to be allocated for military supplies and soldiers.
The monarchs had used their wealth to fund expeditions for explorers. The explorers would’ve worked for them in exchange for expedition fund or to at least acquire a better chance at being funded.
I believe it would be Austria Hungary right?
It was primarily to keep the United States neutral in foreign affairs<span> as much as possible he didn't believe it was smart for the new nation to involve itself in the </span>affairs<span> of other nations.</span>
