After its u-boats sank the lusitania in 1915, what did germany promise to do?

After its U-boats sank the Lusitania in 1915, Germany promised to "limit submarine warfare", since they wanted to avoid a full-on conflict with the United States. 

Ifound this on google “the existence of agglomeration economies is central to the explanation of how cities increase in size and population, which places the phenomenon on a larger scale. the concentration of economic activity in cities is one reason for their development and growth.” i hope this you for what your looking for.

answer: to communicate with people on the other side.

explanation:

but its not smart to do because the gateway on an ouija board is not gaurded