US Response to Colombia's Rejection of the Panama Canal Treaty (1903)

From Treaty Rejection to Canal Control

When Colombia's Senate rejected the Hay–Herrán Treaty (1903), which would have granted the US a canal zone across Panama (then Colombian territory), the US executed a rapid pivot:

1. Supported Panamanian Independence

• Panamanian separatists (led by Manuel Amador Guerrero) declared independence Nov 3, 1903
• US warships (Nashville, Dixie) blocked Colombian troop movements
• US recognized Panama Nov 6, 1903

2. Signed Hay–Bunau-Varilla Treaty (Nov 18, 1903)

• Philippe Bunau-Varilla (French engineer, Panama's envoy) negotiated
• US received 10-mile-wide Canal Zone "in perpetuity"
• $10M upfront + $250K/yr rent
• Panama got sovereignty but limited control over Zone

3. Built the Canal (1904–1914)

• Chief Engineer: John Stevens → George Washington Goethals
• Overcame yellow fever/malaria (Gorgas sanitation)
• Locks design (Gatun Lake) vs. French sea-level failure
• Opened Aug 15, 1914

Long-Term

US controlled Zone until Dec 31, 1999 (Torrijos–Carter Treaties, 1977). Panama now operates via ACP.

Roosevelt's "speak softly and carry a big stick" in action.