diff --git a/y2024_defense/constants.cc b/y2024_defense/constants.cc
new file mode 100644
index 0000000..fa7a14c
--- /dev/null
+++ b/y2024_defense/constants.cc
@@ -0,0 +1,30 @@
+#include "y2024_defense/constants.h"
+
+#include <cinttypes>
+#include <map>
+
+#if __has_feature(address_sanitizer)
+#include "sanitizer/lsan_interface.h"
+#endif
+
+#include "absl/base/call_once.h"
+#include "glog/logging.h"
+
+#include "aos/mutex/mutex.h"
+#include "aos/network/team_number.h"
+
+namespace y2024_defense {
+namespace constants {
+
+Values MakeValues(uint16_t team) {
+  LOG(INFO) << "creating a Constants for team: " << team;
+
+  Values r;
+
+  return r;
+}
+
+Values MakeValues() { return MakeValues(aos::network::GetTeamNumber()); }
+
+}  // namespace constants
+}  // namespace y2024_defense