A bidding tactic where a brand deliberately outbids competitors on searches for its own brand name in Amazon Sponsored Products, allocating extra budget specifically to prevent cheaper competitors from siphoning off branded-search traffic.
Competitors run offensive brand-targeting campaigns against category leaders (see Offensive Competitor-Brand Targeting ("Sniping")); the defending brand counters by keeping its own branded-keyword bids high enough to win the auction on its own name, even at CPCs the traffic alone wouldn't justify.
This differs from ordinary Branded vs. Generic Keyword Segregation, which is about budget/reporting separation — conquesting defense is specifically a bid-escalation response to a competitor attacking your brand terms.
Monitor for competitor presence on your own branded keywords, and when found, raise branded bids defensively rather than optimizing them for ACoS — the objective is traffic retention, not efficiency. Pair with Category CPC-Inflation Domination Tactic for search-share dominance beyond just brand terms.