What challenges did the new republic of Texas face check all the boxes that apply

yeah its a b and d

Explanation:

i think its provide for the common defense

in 550 b.c.e. cyrus the great, the leader of the persians, conquered the medes and united the iranian people under one ruler for the first time. cyrus became the first king of the persian empire and went on to establish one of the largest empires in world.