What's the difference between barricade and epaulement?

Barricade

Definition:

(n.) A fortification, made in haste, of trees, earth, palisades, wagons, or anything that will obstruct the progress or attack of an enemy. It is usually an obstruction formed in streets to block an enemy's access.
(n.) Any bar, obstruction, or means of defense.
(n.) To fortify or close with a barricade or with barricades; to stop up, as a passage; to obstruct; as, the workmen barricaded the streets of Paris.

Example Sentences:

(1) Palestinians barricaded themselves inside al-Aqsa, throwing stones and fireworks at police entering the compound.
(2) The authorities had vacated the area, leaving barricades and piles of rubble in place.
(3) Student protesters in Berkeley and Columbia cheered their TV sets as footage from the Paris barricades made the American news in May, while French students took heart from images of the huge anti-war demonstrations now occurring across Europe and America.
(4) To the amazement of the CRS the students regrouped and fought back, overturning cars, building barricades and digging up cobblestones to use as ammunition.
(5) It's very reminiscent of a similar death almost a year ago, when a "middle-aged trade unionist" collapsed and died during a protest ( details ) Updated at 1.42pm BST 1.31pm BST 30,000 join Athens protests Reuters reckons that more than 30,000 people took part in today's demonstrations in Athens, and that the trouble began when "a small group of protesters" began throwing marble, bottles and petrol bombs at the ropt police who were "barricading part of the square".
(6) Facebook Twitter Pinterest Standing Rock Sioux siblings Austin, Mani, and PJ, stand in front of a police-guarded barricade.
(7) He says they dragged him about 40 metres towards a fire that was still smouldering on the street, the remains of a protesters' barricade.
(8) The bridge has been barricaded for several weeks, blocking the most direct route to Bismarck, North Dakota, and raising safety concerns among residents of the camp and the reservation.
(9) Alec is tweeting from the scene, where "Locals throw rocks at troops, soldiers fire in air ": Locals are holding Russian flag, Molotov cocktails outside Kramatorsk airfield, which has been taken by Ukrainian forces A few young men in masks just arrived at Kramatorsk airfield, reportedly under control of Ukrainian forces now Locals have set up a barricade outside Kramatorsk airfield.
(10) Within minutes of the verdict, young men were pulling barricades on to Tahrir Square.
(11) I will man the barricades for the BBC, they have been good to me, but they have a tendency when accused of a crime just to hand themselves into the police station.
(12) Activists had planned to use vehicles as barricades to shut down border crossings at 17 locations in four states – Arizona, California, New Mexico and Texas.
(13) Police barricaded off the car park near it, forcing anyone attending to walk more than 200m down to the reserve.
(14) Demonstrators appeared to storm the short tunnel in reaction to police attempts over the past two days to chip away at barricades on the edges of the sprawling protest zone.
(15) In a running confrontation, both sides threw molotov cocktails, one of which set alight a makeshift barricade in the foyer.
(16) The demonstrators’ numbers have diminished as many of them returned to work on Monday after a national holiday, but the protest zones remain barricaded, causing traffic jams and angering scores of business owners.
(17) Police erected a barbed wire barricade between the two groups after they faced off and sang rival anthems outside the heavily guarded magistrates court in Ventersdorp, North-West province.
(18) He said: Our activists were sitting there all night calmly, building the barricades.
(19) Police have chipped away at the protest zones in three areas across the city by removing barricades from around the edges.
(20) According to Dieter Rucht of the Social Science Research Centre in Berlin: "This is driving people to the barricades who don't normally go out on to the streets."