Answer the following question: Information:  - World War II (often abbreviated to WWII or WW2), also known as the Second World War, was a global war that lasted from 1939 to 1945, although related conflicts began earlier. It involved the vast majority of the world's nationsincluding all of the great powerseventually forming two opposing military alliances: the Allies and the Axis. It was the most widespread war in history, and directly involved more than 100 million people from over 30 countries. In a state of "total war", the major participants threw their entire economic, industrial, and scientific capabilities behind the war effort, erasing the distinction between civilian and military resources. Marked by mass deaths of civilians, including the Holocaust (in which approximately 11 million people were killed) and the strategic bombing of industrial and population centres (in which approximately one million were killed, and which included the atomic bombings of Hiroshima and Nagasaki), it resulted in an estimated 50 million to 85 million fatalities. These made World War II the deadliest conflict in human history.  - In politics and military planning, a war effort refers to a coordinated mobilization of society's resourcesboth industrial and humantowards the support of a military force. Depending on the militarization of the culture, the relative size of the armed forces and the society supporting them, the style of government, and the popular support for the military objectives, such war effort can range from a small industry to complete command of society.  - A tank is an armored fighting vehicle designed for front-line combat, with heavy firepower, strong armour, and tracks providing good battlefield manoeuvrability. The first tanks were designed to overcome the deadlock of trench warfare; now they are a mainstay of modern ground forces and a key part of combined arms combat.  - The Panzer II is the common name used for a family of German tanks used in World War II. The official German designation was Panzerkampfwagen II ( abbreviated PzKpfw II ) . Although the vehicle had originally been designed as a stopgap while larger , more advanced tanks were developed , it nonetheless went on to play an important role in the early years of World War II , during the Polish and French campaigns . The Panzer II was the most numerous tank in the German Panzer divisions beginning with the invasion of France . It was used in both North Africa against the British and on the Eastern Front against the Soviet Union . The Panzer II was supplanted by the Panzer III and IV by 1940/1941 . Thereafter , it was used to great effect as a reconnaissance tank . By the end of 1942 , it had been largely removed from front line service and it was used for training and on secondary fronts . The turrets of the then obsolete PzKpfw Is and PzKpfw IIs were reused as gun turrets on specially built defensive bunkers , particularly on the Atlantic Wall . Production of the tank itself ceased by 1943 , but its chassis remained in use as the basis of several other armored vehicles , chiefly self - propelled artillery and tank destroyers such as the Wespe and Marder II.  - Firepower is the military capability to direct force at an enemy. (It is not to be confused with the concept of "rate of fire", which describes cycling of the firing mechanism in a weapon system.) Firepower involves the whole range of potential weapons. The concept is generally taught as one of the three key principles of modern warfare wherein the enemy forces are destroyed or have their will to fight negated by sufficient and preferably overwhelming use of force as a result of combat operations.  - During World War II, the American atomic bombings of Hiroshima and Nagasaki made Nagasaki the second and, to date, last city in the world to experience a nuclear attack.  - The Holocaust (from the Greek ': "hólos", "whole" and "kaustós", "burnt"), also referred to as the Shoah"' (Hebrew: , "HaShoah", "the catastrophe"), was a genocide in which Adolf Hitler's Nazi Germany and its collaborators killed about six million Jews. The victims included 1.5 million children and represented about two-thirds of the nine million Jews who had resided in Europe. Some definitions of the Holocaust include the additional five million non-Jewish victims of Nazi mass murders, bringing the total to about 11 million. Killings took place throughout Nazi Germany, German-occupied territories, and territories held by allies of Nazi Germany.  - A great power is a sovereign state that is recognized as having the ability and expertise to exert its influence on a global scale. Great powers characteristically possess military and economic strength, as well as diplomatic and soft power influence, which may cause middle or small powers to consider the great powers' opinions before taking actions of their own. International relations theorists have posited that great power status can be characterized into power capabilities, spatial aspects, and status dimensions.  - A battle is a combat in warfare between two or more armed forces, or combatants. A war sometimes consists of many battles. Battles generally are well defined in duration, area, and force commitment.  - A military alliance is an international agreement concerning national security, when the contracting parties promise to support each other in case of a crisis that has not been identified in advance. Military alliances differ from coalitions, as coalitions are formed for a crisis that are already known.  - Total war is warfare that includes any and all civilian-associated resources and infrastructure as legitimate military targets, mobilizes all of the resources of society to fight the war, and gives priority to warfare over non-combatant needs. The American-English Dictionary defines total war as "war that is unrestricted in terms of the weapons used, the territory or combatants involved, or the objectives pursued, especially one in which the laws of war are disregarded."  - The United States dropped nuclear weapons on the Japanese cities of Hiroshima and Nagasaki on August 6 and 9, 1945, respectively, during the final stage of World War II. The United States had dropped the bombs with the consent of the United Kingdom as outlined in the Quebec Agreement. The two bombings, which killed at least 129,000 people, remain the only use of nuclear weapons for warfare in history.  - The Panzer I was a light tank produced in Germany in the 1930s. The name is short for the German ("armored fighting vehicle mark I"), abbreviated "". The tank's official German ordnance inventory designation was SdKfz 101 ("special purpose vehicle 101").  - Combined arms is an approach to warfare which seeks to integrate different combat arms of a military to achieve mutually complementary effects (for example, using infantry and armor in an urban environment, where one supports the other, or both support each other). According to strategist William S. Lind, combined arms can be distinguished from the concept of "supporting arms" as follows: Combined arms hits the enemy with two or more arms simultaneously in such a manner that the actions he must take to defend himself from one make him more vulnerable to another. In contrast, supporting arms is hitting the enemy with two or more arms in sequence, or if simultaneously, then in such combination that the actions the enemy must take to defend himself from one also defends himself from the other(s).  - Trench warfare is a type of land warfare using occupied fighting lines consisting largely of trenches, in which troops are significantly protected from the enemy's small arms fire and are substantially sheltered from artillery. The most famous use of trench warfare is the Western Front in World War I. It has become a byword for stalemate, attrition, sieges and futility in conflict.  - Strategic bombing is a military strategy used in a total war with the goal of defeating the enemy by destroying its morale or its economic ability to produce and transport materiel to the theatres of military operations, or both. It is a systematically organized and executed attack from the air which can utilize strategic bombers, long- or medium-range missiles, or nuclear-armed fighter-bomber aircraft to attack targets deemed vital to the enemy's war-making capability.  - Hiroshima is perhaps best known as the first city in history to be targeted by a nuclear weapon when the United States Army Air Forces (USAAF) dropped an atomic bomb on the city (and later on Nagasaki) at 8:15 a.m. on August 6, 1945, near the end of World War II.    Given the information, choose the subject and object entities that have the relation of 'instance of'.
Answer:
panzer ii , light tank