Increased tensions between the countries and development of many dangerous weapons.
Answer:The widespread use of machine guns and rapid-firing artillery pieces on the Western Front meant that any exposed soldier was vulnerable. Protection from enemy fire could only be achieved by digging into the earth. Assaults were carried out across "No Man's Land" between the opposing trenches.
It said that as of January 1, 1863, all slaves in the rebellious states "shall be, thenceforward, and forever free." This was issued by Lincoln to preserve the nation into a battle for human freedom.
I️ believe it’s either B or C but I️ having a stronger feeling it’s B because it technically did violate basic rights through stereotyping and fear tactics kind of like with the Red Scare.