Core Viewpoint - The U.S. Army has initiated a new round of transformation and procurement reform, leading to the cancellation of the M10 "Booker" light tank project, which has sparked significant discussion [1][4]. Group 1: Project Background - The M10 "Booker" light tank was introduced as part of the U.S. Army's "multi-domain operations" concept, aimed at enhancing rapid deployment and combat capabilities in complex environments [1][2]. - The Army planned to produce 504 light tanks by 2035 to support infantry brigades, with the first 24 units expected to be operational by June 2024 [1]. Group 2: Design and Technical Issues - The initial design weight of the "Booker" was capped at 35 tons for strategic airlift purposes, but modifications during development increased its weight to 42 tons, limiting air transport efficiency [2]. - The tank's power output was below design standards, necessitating a more powerful engine, which reduced its operational range from 480 kilometers to 305 kilometers [2]. Group 3: Armament and Combat Effectiveness - The main armament, a 105mm M35 gun, has several deficiencies, including weak armor penetration and limited ammunition compatibility, making it less effective against modern armored threats [3]. - The tank's design compromises its ability to provide reliable fire support for infantry, as it struggles to penetrate the armor of contemporary main battle tanks [3]. Group 4: Strategic Context and Cancellation - The cancellation of the "Booker" project reflects a broader shift in military strategy, particularly in light of lessons learned from the Ukraine conflict, which highlighted the need for improved firepower and protection in armored vehicles [4][6]. - The project was deemed a "stop-loss" measure for the Army, as it faced challenges in meeting the evolving demands of modern warfare [4][6].