trench noun A long, narrow ditch dug into the ground, often for drainage, planting, or military defense. Soldiers huddled in the muddy trench as shells exploded in the distance. + trench warfare noun A style of combat in which opposing armies fight from long defensive ditches dug into the ground. Trench warfare on the Western Front led to enormous casualties for very little land gained. + no man's land phrase An area of land, especially between opposing armies, that is unoccupied or disputed and dangerous to enter. Soldiers crawled across no man's land under cover of darkness. + armistice noun A formal agreement between opposing sides in a war to stop fighting. The armistice was signed in a railway carriage at eleven in the morning. + alliance noun A formal agreement or union between groups, nations, or individuals to work together toward a shared goal. The two countries formed a military alliance after decades of tension. + mobilization noun The act of gathering and preparing troops, resources, or people for war or another large collective effort. The government ordered the mobilization of reserve troops after the border incident. + conscription noun The compulsory enrollment of people, especially young men, into a country's armed forces. The government introduced conscription shortly after war was declared that summer. + artillery noun Large-caliber weapons, such as cannons, used to launch projectiles over long distances. The advancing troops came under heavy artillery fire from the hillside. + shell shock noun A psychological condition, marked by anxiety, exhaustion, and nightmares, caused by prolonged exposure to combat, especially heavy shelling. Many World War I veterans returned home suffering from shell shock that doctors barely understood. + propaganda noun Information, often biased or misleading, spread deliberately to promote a particular political cause or point of view. The government used posters and radio broadcasts as propaganda to boost support for the war effort. + stalemate noun A situation in which neither side in a dispute or contest can make progress, resulting in a deadlock. Contract negotiations reached a stalemate after both sides refused to compromise. + offensive adjective Causing anger, hurt, or resentment because it is rude, insulting, or disrespectful. Several viewers complained that the comedian's jokes were deeply offensive. + treaty noun A formal, legally binding agreement between two or more nations or states. The two countries signed a treaty ending decades of border disputes. + neutrality noun The state of not supporting or helping either side in a conflict, argument, or competition. Switzerland is well known for its long history of political neutrality. + rationing noun The controlled distribution of scarce goods or resources, giving each person a fixed, limited share. Gasoline rationing during the crisis meant drivers could only fill their tanks twice a week. + casualty noun A person killed, injured, or missing as a result of an accident, disaster, or war. The earthquake left dozens of casualties across the small mountain town. + infantry noun Soldiers who fight on foot, as opposed to those in tanks, on horseback, or in the air. The general ordered the infantry to advance at dawn under cover of fog. + cavalry noun Soldiers who fight while mounted on horses, or, historically, an army unit trained for this. The general ordered the cavalry to charge the enemy's exposed flank. + machine gun noun An automatic firearm that fires bullets rapidly and continuously while the trigger is held down. The soldiers set up a machine gun to defend the position. + poison gas noun A toxic gas capable of killing or seriously harming people who breathe it, often used as a weapon. Soldiers in the trenches wore masks to protect themselves from poison gas attacks. + dogfight noun A close, fast-moving combat between fighter aircraft, or any fierce close competition. The pilot barely survived a dogfight with two enemy planes. + U-boat noun A German military submarine, especially one used during the First or Second World War. A U-boat torpedoed the merchant ship in the North Atlantic. + blockade noun An action that seals off a place to prevent people, goods, or information from entering or leaving. The navy set up a blockade to stop supply ships from reaching the enemy port. + homefront noun The civilian population and activities of a country whose military is fighting a war elsewhere. Factories on the homefront switched to producing tanks and ammunition during the war. + veteran noun A person who has served in the armed forces, especially during a war. The parade honored local veterans who had fought overseas decades earlier. + reparations noun Payments or actions made to compensate for harm or damage caused, especially after a war or injustice. The government agreed to pay reparations to the families affected by the disaster. + nationalism noun A strong sense of identity and loyalty to one's nation, often including a belief in its right to independence or dominance. Rising nationalism in the region led to increased tension between neighboring countries. + assassination noun The murder of a prominent or important person, usually for political reasons. The assassination of the president shocked the nation and triggered days of unrest. +