What was the last major confederate stronghold?

Vicksburg

Explanation:Vicksburg as the last major Confederate stronghold on the Mississippi River; therefore, capturing it completed the second part of the Northern strategy, the Anaconda Plan. The successful ending of the Vicksburg campaign significantly degraded the ability of the Confederacy to maintain its war effort.

explanation:

may i ask what challenges?

the question deals with financial planning and the answer is that dan did not stay on budget due to the fact that this guy needs to start decreasing his discretionary spending. according to the financial plan, he needed to balance his expenses and resources.