What's the difference between romanesque and gothic style buildings?

Romanesque church;  massive and fortress like, thick walls,  few windows, heavy stone roofs, huge columns, round Roman arches.

Gothic cathedral;   had flying buttresses to support the walls, had tall spires, lofty towers, and pointed arches. Open, spacious  interior, stained glass windows.

Hope this helps. :)

abraham lincoln  (february 12, 1809  – april 15, 1865) was an american statesman, politician, and lawyer who served as the 16th  president of the united states  from 1861 until  his assassination  in april 1865. lincoln led the nation through the  american civil war, its bloodiest war and its greatest moral, constitutional, and political crisis.[2][3]  he preserved the  union,  abolished slavery, strengthened the  federal government, and modernized  the u.s. economy.

because the vietnam war was fought in an especially brutal and untraditional way