Why did the use of trenches prolong world war 1?

What was the political climate during the time of the trial and how did this historical context affect their fate

Florida benefited greatly from roosevelt’s civilian conservation corps (ccc) in the 1930s. which of these was of least benefit to the state? a) workers planted millions of trees. b) workers received food and clothing. c) the government created state parks. d) new roads facilitated travel out west.

What did the introduction of silk into the mediterranean do for the abbasid empire