The forces used by the Christian or Latin leaders in Syria were formed from a conglomeration of sources. Both the feudal system and changing conditions throughout the crusades made this necessary. The knights as discussed in the topic page on chivalry composed one portion of the army. It is important, however, to realize that while their influence remained important in the military tactics of the crusader states, their numbers dwindled towards the end of the crusades as the idea of the knight became increasingly associated with nobility and heredity of the title. When the influence of the knights was the weakest, other sources were found to supplement the knight in the army.
Trench Warfare is a fighting tactic used during World War I on the Eastern and Western Front. Trenches are simply dug down, and each country would not let one another advanced
Answer: submarine attacks
Context/detail:
Public outrage in the US against the Germans swept the nation following the sinking of the British ocean liner, Lusitania. When a German U-boat (submarine) sank the Lusitania in May, 1915, over 1,000 persons were killed, including more than 100 Americans. The passenger liner was targeted by the Germans because they suspected weapons were being shipped to Britain in the cargo hold of the ship.
Germany managed to stave off American entry into the war at the time by pledging to stop submarine attacks. But a couple years later they resumed such attacks, and there was also an intercepted telegram that showed Germany was trying to secure Mexico as an ally against the United States. In 1917, the US declared war on Germany in response.
One major problem that has resulted from globalization in the 20th and 21st century is that the diseases are able to spread around the world more quickly.
Globalization has reached a point that the problems of one country are likely to affect the whole world since the world is nowadays like a global village.
mark me brainliest XD