Pocket (military) in the context of "Battle of annihilation"

The Courland Pocket was a pocket located on the Courland Peninsula in Latvia on the Eastern Front of World War II from 9 October 1944 to 10 May 1945.

Army Group North of the Wehrmacht were surrounded in western Latvia by the Red Army after the Baltic Offensive, when forces of the 1st Baltic Front reached the Baltic Sea near Memel (Klaipėda) after the collapse of Army Group Centre during Operation Bagration. Army Group North retreated to the Courland Pocket and was renamed Army Group Courland on 25 January, holding off six Red Army offensives until the German Instrument of Surrender was signed on 8 May 1945. Army Group Courland were in a communication "blackout" and did not get the official order until 10 May, becoming one of the last German groups to surrender in Europe.

A salient, also known as a bulge, is a battlefield feature that projects into enemy territory. The salient is surrounded by the enemy on multiple sides, making the troops occupying the salient vulnerable. The opponent's front line that borders a salient is referred to as a re-entrant – that is, an angle pointing inwards. A deep salient is vulnerable to being "pinched off" through the base, and this will result in a pocket in which the forces in the salient become isolated and without a supply line. On the other hand, a breakout of the forces within the salient through its tip can threaten the rear areas of the opposing forces outside it, leaving them open to an attack from behind.

The Falaise pocket or battle of the Falaise pocket (German: Kessel von Falaise; 12–21 August 1944) was the decisive engagement of the Battle of Normandy in the Second World War. Allied forces formed a pocket around Falaise, Calvados, in which German Army Group B, consisting of the 7th Army and the Fifth Panzer Army (formerly Panzergruppe West), were encircled by the Western Allies. The battle resulted in the destruction of most of Army Group B west of the Seine, which opened the way to Paris and the Franco-German border.

Six weeks after the 6 June 1944 Allied invasion of Normandy, German forces were in turmoil, having expended irreplaceable resources defending the frontline and with Allied air superiority threatening the availability of food and ammunition. However, on the Allied side, British forces had expected to liberate Caen immediately after the invasion, an operation which ended up taking nearly two months, and US forces had expected to control Saint-Lô by 7 June, yet German resistance delayed this until after Caen's liberation.

The Battle of Grozny of August 1996, also known as Operation Jihad or Operation Zero Option, when Chechen fighters regained and then kept control of Chechnya's capital Grozny in a surprise raid. Russian federal forces had captured the city in a previous battle that ended in February 1995, and subsequently posted a large garrison of federal and republican Ministry of the Interior (MVD) troops in the city.

The much smaller Chechen forces infiltrated Grozny and either routed the MVD forces or split them into many pockets of encirclement. Chechen fighters then beat back the Russian Ground Forces units that had been sent to expel the fighters and rescue their own trapped forces. The final result was a ceasefire that effectively ended the First Chechen War of 1994–1996.