Japanese Soldiers Were Horrified When They Saw 1,000 Steel Balls Wipe Out Their Banzai Charge

Japanese Soldiers Walked Into 122 Steel Balls at Guadalcanal They expected frightened Marines. They expected a bayonet charge to break the line. Instead, they ran into a cannon loaded like a shotgun. SUMMARY This documentary tells the story of the Battle of the Tenaru — one of the first brutal lessons Japan learned on Guadalcanal. On August 7, 1942, U.S. Marines landed on Guadalcanal and captured the unfinished Japanese airstrip that became Henderson Field. Whoever controlled that airfield controlled the sea lanes between America and Australia. Japan moved quickly to take it back. Colonel Kiyonao Ichiki and the elite Ichiki Detachment landed east of the Marine perimeter with orders to wait for reinforcements. Ichiki did not wait. He believed the Marines were weak, disorganized, and likely to collapse under a determined night assault. He was wrong. At the mouth of the Ilu River, Lieutenant Colonel Edwin Pollock and Colonel Clifton Cates had prepared the Marine line. Machine guns covered the sandbar. Mortars were zeroed in. And two M3 37mm anti-tank guns were hidden in position. Those guns had been brought to Guadalcanal to stop Japanese tanks. But that night, they were loaded with M2 canister rounds — thin metal shells packed with 122 hardened steel balls. When fired, each shell turned the anti-tank gun into a giant shotgun. Before the attack, a Solomon Island scout named Jacob Vouza was captured and tortured by Japanese soldiers. He refused to reveal the Marine positions. After being bayoneted and left for dead, he escaped, crawled through the jungle, and warned the Marines that the Japanese were coming. That warning gave the Marines just enough time. In the early hours of August 21, Ichiki’s men charged across the sandbar with bayonets fixed. At seventy yards, the 37mm guns opened fire. Canister rounds tore through the front ranks. Machine guns and mortars finished what the steel balls began. By morning, the elite Japanese assault had been destroyed. Ichiki refused to withdraw. Vandegrift ordered a counterattack. Marines crossed upstream, trapped the survivors against the sea, and finished the battle with rifle fire, aircraft, and Stuart light tanks. Of the first echelon of the Ichiki Detachment, roughly 774 to 800 men were killed. American losses were 41 killed and 71 wounded. This is the story of the night Japanese spirit met American steel — and broke. CHAPTERS 00:00 122 Steel Balls 01:14 Guadalcanal 02:22 Henderson Field 03:03 Ichiki Detachment 04:23 Marco Polo Bridge 06:33 Midway’s Shadow 07:35 Ichiki Refuses to Wait 09:54 The Marine Line 12:03 The 37mm Gun 12:31 M2 Canister 14:35 Brush Finds the Maps 17:43 Jacob Vouza 21:23 Vouza Escapes 24:27 The Warning Arrives 26:26 First Contact 27:12 The Banzai Charge 28:07 The Canister Opens 29:21 The Line Lights Up 31:01 Red-Hot Barrels 32:22 The Flanking Attempt 34:10 Ichiki Doubles Down 36:47 Vandegrift Counterattacks 39:13 The Morning After 42:52 Wildcats Attack 44:06 Stuart Tanks Enter 47:35 The Dead Still Fire 49:02 Ichiki’s Death 50:46 Final Count 52:38 The Promotion 54:32 Sir Jacob Vouza 56:18 The Bridge and the Sandbar INSIDE THIS DOCUMENTARY ▸ Why Ichiki underestimated the U.S. Marines ▸ How Jacob Vouza’s warning saved precious time ▸ Why the sandbar became a killing zone ▸ How M2 canister turned a 37mm gun into a giant shotgun ▸ Why the Japanese banzai charge failed so catastrophically ▸ How Vandegrift trapped the survivors after sunrise ▸ Why Tenaru changed the Pacific War SOURCES & REFERENCES • U.S. Marine Corps Guadalcanal Campaign Records • First Marine Division After Action Reports • Battle of the Tenaru / Ilu River Accounts • Jacob Vouza Award and Biography Records • Japanese Ichiki Detachment Accounts • M3 37mm Anti-Tank Gun Technical Records • Guadalcanal Campaign Histories #WorldWarII #WW2Documentary #Guadalcanal #BattleOfTenaru #USMarines #PacificWar #MilitaryHistory