How and why has warfare changed over time? Similarities and differences between; the war of succession, the Crimean war, vietnam war and ww1?

In 2001 mexico imposed a 20% tax on all soft drinks not made from sugar cane high fractals corn sit-up which is made from corn, is often used in place of cane sugar to manufacture soft drinks. which nation would most likely be impacted by mexico’s policy change?

Dalton developed the first model of the atom that showed the structure of the inside of an atom

Why did alexander give the soldier who saved the hat band a reward? why did he then order the man's head cut off?