I think answer should be d. Please give me brainlest I hope this helps let me know if it’s correct or not thanks bye
Answer:
united states and soviet union
Explanation:
To modernize the country.
Both parties select their candidates in nominating conventions which occur in the months ... These methods are a primary and a caucus.
Chemical weapons
Both sides developed lethal forms of chemical welfare that resulted to death of thousands in the trench war.Germany was the first to employ chemical weapons and it is estimated that over 10,000 tonnes of chemical gas, lethal and poisonous was blown.