What are the advantages and disadvantages of nationalism and military preparedness first one to answer will get 15pts

I think that one advantage of nationalism is the unity it

builds among people who share the same nation, who start to think

of each other as co-citizens.  

One disadvantage of nationalism, of course, is the hate that can

be directed against outsiders - hate that sometimes culminates in  war.    

yes.

explanation:

because it let the japanese know who had the upper hand in the war.

valentina tereshkova

soviet cosmonaut valentina tereshkova became the first woman to fly to space when she launched on the vostok 6 mission june 16, 1963. valentina tereshkova was the first woman to go into space. in 1963, she spent almost three days in space and orbited earth 48 times in her space capsule, vostok 6.jan 22, 2018