In 1936, Landon sought the Republican presidential nomination opposing the re-election of Roosevelt. ... Landon proved to be an ineffective campaigner who rarely traveled. Most of the attacks on Roosevelt and Social Security were developed by Republican campaigners rather than Landon himself.
Answer:
Gas
Machine Guns
Trenches
Explanation:
ww1 was all about using mustard gas and it was popularized before being banned after ww1 and ww1 was the first introduction to full auto machine guns similar to LMGs nowdays and trenches were created to prevent getting shot, gassed or sprayed down by enemies
