many historians believe that the buildup of armies in europe at the beginning of the 1900s eventually led to the outbreak of world war i. what is their reasoning for this belief?

the expansion of military power held by the world's navies led to shots being fired as navies entered enemy territory.

the growth of armies led to to economic shortages as countries spent too much on warfare, causing revolutions.

world war i began because the generals leading the armies of europe were bored with peace and restless for combat.

the race to build stronger weapons made countries anxious to attack before their enemies became too powerful.

The military history of the United States spans a period of over two centuries. During those years, the United States evolved from a new nation fighting Great Britain for independence (1775–1783), through the monumental American Civil War (1861–1865) and, after collaborating in triumph during World War II (1941–1945), to the world's sole remaining superpower from the late 20th century to present.

The Continental Congress in 1775 established the Continental Army, Continental Navy, and Continental Marines and named General George Washington its commander. This newly formed military, along with state militia forces, the French Army and Navy, and the Spanish Navy defeated the British in 1781. The new Constitution in 1789 made the president the commander in chief, with authority for the Congress to levy taxes, make the laws, and declare war.

As of 2017, the U.S. Armed Forces consists of the Army, Marine Corps, Navy and Air Force, all under the command of the United States Department of Defense. There also is the United States Coast Guard, which is controlled by the Department of Homeland Security.

The President of the United States is the commander-in-chief, and exercises the authority through the Secretary of Defense and the Chairman of the Joint Chiefs of Staff, which supervises combat operations. Governors have control of each state's Army and Air National Guard units for limited purposes. The president has the ability to federalize National Guard units, bringing them under the sole control of the Department of Defense.

The expansion of military power held by the world's navies led to shots being fired as navies entered enemy territory.

Explanation:

The main event of Militarism causing World War one was the naval rivalry which was made after 1900. ... The Kaiser felt he needed a bigger navy than Britain to protect its country. While Britain and Germany built up their navies, the major powers on mainland Europe were also building up their armies

montesquieu took the view that the roman republic had powers separated so that no one could usurp complete power. in the british constitutional system, montesquieu discerned a separation of powers among the monarch, parliament, and the courts of law.

abraham lincoln  (february 12, 1809  – april 15, 1865) was an american statesman, politician, and lawyer who served as the 16th  president of the united states  from 1861 until  his assassination  in april 1865. lincoln led the nation through the  american civil war, its bloodiest war and its greatest moral, constitutional, and political crisis.[2][3]  he preserved the  union,  abolished slavery, strengthened the  federal government, and modernized  the u.s. economy.