As global leaders prepared to travel to seoul for a nuclear security summit meeting, north korea warned on wednesday that any criticism of its nuclear weapons program would be considered a " declaration of war" north korea frequently refers to the likelihood of war, and it previously called the united nations' condemnations of nuclear weapons and long-range missile programs a "declaration of war" why might this information be of concern to leaders around the

This is of concern to leaders around the world because leaders usually want to avoid war and instability. If North Korea adopts this attitude, then the leaders of the world will most likely be fearful that the nuclear weapons program could cause wars that could endanger other nations. These wars could be particularly destructive and damaging, as they would involve the use of nuclear weapons.

alliances in ww1 were different from ww2 because the entente in ww1 made up of serbia,russia,france,britan,japan and italy later america  and all allied in a sort of balance of power and too keep germany,austria-hungary,and the ottomans down. russia allied the serbians in order to exert its influence in the balkans while france allied the russians because france was still in dismay and insulted after the defeat to the germans during the unification of germany and britian allied the belgians after the germans invasion of belgium.in ww2 the alliances were in a preemptive attempt to deter any further wars into happening while germany and italy allied since they were insulted and humiliated after the previous war while also sharing a similar ideology of facsim along with japan which all 3 had a want for world domination and agreed to assist one another in the endevours 

explanation:

2686-2181 bce-- "egyptian civilization developed along the nile river in large part because the river’s annual flooding ensured reliable, rich soil for growing crops."

1069-664 bce-- "ancient egyptians developed wide-reaching trade networks along the nile, in the red sea, and in the near east."