Answer:
Gave them Jobs
Explanation:
When the men went off to fight in the war the women stepped up and filled the men's jobs.
In many cases, the US would set up "puppet governments" to administer its new found territories, since many of these territories--such as Puerto Rico and the Philippines--were too far away for direct governance.
By using the money that he has already and fixing the problem and if he can't then he will keep a promise that he will fix all their problems.
Being along oceans or major water ways made trade to other areas more accessible, which attributed to those cities' economic and financial growth.