Which effect did the labor union that lech walesa led in poland have on the country?
a. achieved higher wages for its workers
b. formed a democratic state that broke away from poland
c. industrialized the polish economy
d. ended communist rule and elected a democratic government

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How did the united states respond when north vietnam attacked a us warship and sent troops to south vietnam in the early 1960s? a.the united states declined to assist south vietnam against the north. b.us leaders authorized south vietnam to invade north vietnam. c.the president did not sign the gulf of tonkin resolution. d.congress authorized the president to escalate the conflict.