1. Short title This Act may be cited as the Advancing America's Missile Defense Act of 2017 . 2. Sense of Congress on current state of United States missile defense, future investment, and accelerating capabilities to outpace current threats (a) Findings Congress makes the following findings: (1) According to the Commander of United States Northern Command, General Lori Robinson, the ground-based midcourse defense (GMD) element of the ballistic missile defense system defend[s] the homeland against a limited long-range ballistic missile attack and is designed to intercept incoming threats in the midcourse phase of flight. . (2) Spanning 15 time zones, the ground-based midcourse defense element of the ballistic missile defense system and its associated elements represents the only system currently capable of defeating an adversary’s intercontinental ballistic missile (ICBM) in the midcourse segment of flight. (3) Terminal High Altitude Area Defense (THAAD) is a United States Army weapon system that is transportable, globally deployable, and capable of defeating ballistic missiles inside or outside the atmosphere during a missile’s terminal phase of flight. (4) In response to the aggressive behavior of North Korea, the United States initially deployed a Terminal High Altitude Area Defense battery to the United States territory of Guam in April of 2013, made that deployment permanent in July of 2015, and began to deploy a Terminal High Altitude Area Defense battery to South Korea in March of 2017. (5) Aegis Ballistic Missile Defense is the naval component of the ballistic missile defense system capable of defeating short-to-intermediate-range, midcourse-phase, ballistic missile threats and short-range ballistic missiles in the terminal phase. (6) The Navy currently has 33 Aegis Ballistic Missile Defense combatants, 5 cruisers (CGs) and 28 destroyers (DDGs), and will add an additional ballistic missile defense-capable destroyer by the end of fiscal year 2017. (7) Aegis Ashore is the land-based component of the Aegis