Practices of war and their impact on outcome

How a war was actually fought — technology, the air/naval/land domains, total war, and foreign powers — and whether that decided who won.

Technology, Domains (air/naval/land), Total war, and Foreign powers.

The new weapons and inventions used in war — e.g. machine guns, tanks, radar, aircraft and the atomic bomb.

Nature: from static trenches to mobile blitzkrieg. Scale: aircraft and the atomic bomb let armies destroy whole cities and populations.

Land takes and holds ground, naval power controls supply, and air power strikes deep — winners usually combine all three.

"Lightning war" — fast, deep advances using tanks, aircraft and radio together; used by Germany in 1939–41.

A war in which a state mobilises its entire society and economy — factories, food, civilians, women and propaganda all become part of the war effort.

The civilian population and economy organised for war. Because it feeds the war, blockade and strategic bombing aim at it, not just at armies.

Economic (war production), human (conscription plus women in factories), and morale/propaganda. Break any one and the war effort cracks.

Through alliances, direct intervention, and supplies of money and material — e.g. US Lend-Lease to Britain and the USSR.

Spanish Civil War: German and Italian forces intervened for Franco; WWII: US Lend-Lease sent weapons, food and trucks to the Allies.

Strategy — outcomes come from how strategy, resources and technology combine, not from any one factor alone.

The Schlieffen Plan failed at the Marne, so both sides dug trenches from the Belgian coast to Switzerland. Defensive weapons made attacking deadly, so neither side could advance.

Wearing the enemy down by killing more of their men and using up more of their resources than they can replace, rather than winning quick, decisive battles.

The Somme (over 1 million casualties, tiny gains) and Verdun (around 700,000 casualties, France held). Both show huge losses for almost no movement of the front.

Machine guns, artillery and barbed wire strengthened the defence, making attacks costly. Gas, tanks and aircraft were introduced but were not yet decisive.

It cut off food and raw materials to Germany, causing severe shortages and hunger that wrecked civilian morale and the home-front war economy over several years.

The only major battleship clash. Germany sank more ships but retreated to port, so Britain kept command of the sea and the blockade continued.

From 1917, U-boats sank any ship heading for Britain, including neutral American ones. It aimed to starve Britain but helped bring the USA into the war.

A war using a nation's whole population and economy. WWI featured conscription, war economies, munitions production, and women replacing men in factories and farms.

German unrestricted submarine warfare sank American ships, and the Zimmermann Telegram revealed Germany urging Mexico to attack the USA. The USA joined the Allies.

The 1917 Bolshevik Revolution and the 1918 Treaty of Brest-Litovsk took Russia out of the war, freeing German troops to move west for the 1918 Spring Offensive.

Germany's last big attack in the west, racing to win before US forces arrived. It gained ground but ran out of men and supplies, then Allied counter-attacks drove Germany back.

Allies: more men, money, food and industry; the blockade; fresh US troops. Germany: fewer resources, a starved home front, the failed Spring Offensive, and a U-boat gamble that drew in the USA.

How a war was actually fought — the tactics, technology, mobilisation and foreign involvement — not just who won.

German for 'lightning war': fast, combined tank-and-air attacks that break through and surround the enemy before it can react.

The German invasion of the Soviet Union in 1941 — the largest land invasion in history, which ultimately failed.

A whole German army was surrounded and forced to surrender, turning the Eastern Front and beginning Germany's long retreat.

Britain's RAF, aided by radar, held off German bombing — the first battle decided almost entirely in the air.

The Battle of the Atlantic kept Britain supplied; Midway (1942), a carrier battle, turned the war in the Pacific.

War in which whole countries mobilise — economies, factories, rationing and civilians all bend around the war effort.

After Japan attacked Pearl Harbor in December 1941, the USA joined the Allies and out-produced every enemy combined.

US trucks, food and weapons sent to Britain and the USSR, keeping the Allies supplied even before America joined.

The Allied landings in Normandy, France — the largest sea invasion ever — which opened the western front against Germany.

The USA dropped atomic bombs on Hiroshima and Nagasaki in August 1945, and Japan surrendered days later.

Overwhelming economic and industrial superiority plus a two-front war that split and exhausted German forces.