What technology ended the Age of Knights and Chivalry?

One reason was that many countries had formed their own standing armies. They paid soldiers to train and fight. They no longer needed lords to come fight as knights. The other reason was a change in warfare. Battle tactics and new weapons such as longbows and firearms made the heavy armor the knights wore cumbersome and useless. This made it much easier to arm a soldier and pay for a standing army.

Explanation:

One reason was that many countries had formed their own standing armies. They paid soldiers to train and fight. They no longer needed lords to come fight as knights. The other reason was a change in warfare. Battle tactics and new weapons such as longbows and firearms made the heavy armor the knights wore cumbersome and useless. This made it much easier to arm a soldier and pay for a standing army.

a peace conference held after the surrender of japan

an international conference held near the end of world war ii

a meeting of the victorious nations after the defeat of germany

a summit meeting between the united states and the soviet union