What was the impact of the use of machine guns and barbed wire during world war i?

soldiers lived in trenches when they could not advance without heavy casualties.

field commanders believed it was important to attack first.

casualties were low because soldiers were protected.

soldiers were able to advance rapidly on one another.

Machine guns were the ultimate defensive weapon similar to WW1 and they didn't have machine guns but they did have barbed wire and rifles. Just look at the numbers of casualties on both sides during attacks. ... with small unit infantry tactics, tanks, aircraft, and better use of artillery to support the infantry.

Explanation:

explanation:

hi

the captain of a steam ship naturally chooses the shortest route to his destination. since a sailing ship is usually pushed by winds and currents, its captain must find a route where the wind will probably blow in the right direction. tacking, i.e. using contrary wind to pull (sic) the sails, was always possible but wasted time because of the zigzagging required, and this would significantly delay long voyages. the early european explorers were not only looking for new lands. they also had to discover the pattern of winds and currents that would carry them where they wanted to go. during the age of sail winds and currents determined trade routes and therefore influenced european imperialism and modern political geography. for an outline to the main wind systems see global wind patterns.

pilotage or cabotage, in one sense, is the art of sailing along the coast using known landmarks. navigation, in one sense, is the art of sailing long distances out of sight of land.[1] although the polynesians were able to sail the pacific (with great difficulty) and people regularly sailed north and south across the mediterranean, before the time of columbus nearly all sailing was coastal pilotage

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