Sun square Mars (orb 1.1°) creates concrete friction between the two planets. The orb is very tight; this describes a stable character pattern more than a passing reaction.
Here, Sun in Cancer in House 11 brings identity, ego, father figure, visibility, and direction into House 11 (networks, audience, groups, ideas, ideologies, political beliefs, and collective projects), with Cancer style (memory, protection, belonging, and family sensitivity); Mars in Libra in House 2 brings action, courage, competition, and effort into House 2 (resources, values, and security), with Libra style (relationship, balance, negotiation, and sense of form).
Concrete friction: this aspect creates visible tension between ego, father image, and action: will can feel attacked, blocked, or forced to prove strength, sometimes through a weak, absent, inhibiting, or castrating father image. House 11 (networks, audience, groups, ideas, ideologies, political beliefs, and collective projects) is in friction with House 2 (resources, values, and security); this can create blockage, inhibition, overreaction, or repeated conflict between the two fields.