Bangladesh? Isn’t that the country we see on TV where the people live on top of their mud huts and wait for US Marines in helicopters to feed them?
Take every male (or female) in the US, and ship them all to Iowa. (Or the entire population of Russia. Same basic number ~145-150 million)
Now take Iowa, and put it in the middle of monsoon territory.
Now take New (and Wet) Iowa, and remove most of the hospitals, schools, half of the arable land, and 90% of the underground resources (surprisingly little metals, coal, etc).
Next, put in a culture that is often at odds with itself, and make it virtually invisible on the world stage, despite having over 2% of the global population.
Now add a language that isn't spoken elsewhere.
Next, make it a former colony of Pakistan (what a great influence to follow!), and make 90% of the population Muslim.
VOILA'!! You now have Bangladesh. Good luck!