Failure On All Fronts: The United States Army in the First Year of the War of 1812 Gary H. Nobbs Jr.
Abstract
The United States declared war on the United Kingdom in the hopes of defending the nation's national honor. However, the United States Army was unprepared to go wage war. The army's supply system, militia system, and field commanders failed and led to a disastrous first year of conflict.
https://digitalcommons.buffalostate.edu/history_theses/50/
That's what happens when you pick a fight unprepared.