John Spencer (military officer)

He enlisted in the United States Army as a private, immediately after graduating from high school at the age of 17,[3] eventually reaching the rank of Sergeant first class, until receiving commission; he retired from active service with the rank of major.[4]

During his military career, he was infantry platoon leader and company commander, including two combat tours during the Iraq War. In Iraq, he served during the initial invasion in 2003 and later in 2008 during the Iraq War troop surge and the Battle of Sadr City.[5][6] He was also assigned to Ranger School, Joint Chiefs of Staff, etc. Later he became a fellow with the chief of staff of the Strategic Studies Group, until he moved to Modern War Institute (MWI).[7]

Spencer is currently a chair of urban warfare studies at the MWI and a colonel in the California State Guard, where he is assigned as the director of urban warfare training with the 40th Infantry Division.[8]

During the summer of 2022, while Russian invasion of Ukraine was still in progress, he visited Ukraine, "to study the battle of Kyiv."[9]

During the Russian invasion of Ukraine in 2022, he started giving advice on "how to resist the Russian invasions" through Twitter.[10][11][12][13][14] This culminated in him releasing "The Mini-Manual for the Urban Defender: A Guide to the Strategies and Tactics of Defending a City", which was translated in more than 10 languages.[15][16][17]

He is also a contributing editor at War on the Rocks.[18]

John Spencer has praised the Israeli military's performance during its invasion of Gaza Strip, and hosted Israeli Prime Minister Benjamin Netanyahu.[19] According to a foreign policy adviser of Netanyahu, Spencer believes "Israel sets the gold standard in terms of preserving civilian lives".[20] Spencer argues that Israeli attempts to evacuate Gazan civilians, roof knocking and texting civilians ahead of an airstrike have never been implemented by any military before.[21]

Larry Lewis of Center for Naval Analyses has criticized Spencer's positions.[2] He argues that the IDF's order for 1 million Gazans to evacuate to in 24 hour was deemed practically impossible by experts, and that Israel attacked civilians while they were evacuating and then again once the civilians were in southern Gaza. Lewis also questions how many text message warnings got through, due to destruction of infrastructure, and argues that roof knocking can cause confusion which can reduce its effectiveness.[2]

In an interview on CNN, Spencer insisted that Israel's bombing of the Gaza Strip had been "proportional, very discriminate, very precise."[22]

• Liam Collins and John Spencer, Understanding Urban Warfare (2022; ISBN 978-1912440351)
• John Spencer, Connected Soldiers: Life, Leadership, and Social Connections in Modern War (2022; ISBN 978-1640125124)

• Personal Web page