They accepted volunteers, but the primary way the U.S got soldiers for the war was through Selective Service aka the draft.
B both systems greatly increased europeans total wealth
A.
There was always a large labor force for the agricultural industry so this has not been a major development over the past 50 years.
The war ended with the signing of the Treaty of Sugauli in 1816, which ceded some Nepalese controlled territory to the EIC. British victory with Treaty of Sugauli, (March 4, 1816), agreement between the Gurkha chiefs of Nepal and the British Indian government that ended the Anglo-Nepalese (Gurkha) War (1814–16).