Short answer: In most contexts, you don’t say “Happy Veterans Day” to a veteran. A more appropriate and common alternative is “Thank you for your service” or “I appreciate your sacrifice,” which acknowledges their service respectfully without implying a festive greeting. Context and guidance

• When addressing a veteran directly or writing a Veterans Day message, many sources suggest expressing gratitude rather than wishing happiness for a day that honors service and sacrifice. Phrases like “Thank you for your service,” or “I’m grateful for everything you’ve done for our country,” are commonly recommended. [source guidance reflects this approach]

• If you want to personalize the message, you can add a sentence that acknowledges their specific experiences or sacrifices, but avoid generic “Happy Veterans Day” in formal or professional settings. Examples include “Thank you for your service and dedication” or “I value your contributions to our country.”

Situational tips

• For veterans you know personally: consider a message tailored to their experiences, or simply ask how they are doing and offer thanks in a sincere way. Personalization is often appreciated.

• In formal or public communications (cards, emails, social posts): “Thank you for your service” or “We’re grateful for your service and sacrifice” are widely recommended alternatives.

Common variations you might use

• Thank you for your service.
• I’m grateful for everything you’ve done for our country.
• We honor and appreciate your sacrifices on Veterans Day.

If you’d like, share the context (tone: formal, casual; recipient: specific veteran, a group, or a public audience) and I can craft a few ready-to-send options.