Due to the tax treaty between the U.S. and Canada, income from visiting players is not taxable in Canada.

FORBES: Traded Marlins Players Will Take $2 Million Tax Hit In Canada

In 1842, the Webster-Ashburton Treaty between the U.S. and Britain was signed.

CNN: Sunday,

To navigate this potentially messy situation, one must look to the tax treaty between the U.S. and the home country, assuming one exists.

FORBES: NHL Lockout Creates Tax Residency Issue For Players

Democrats charge this would be a violation of the anti-ballistic missile treaty between the U.S. and Russia, which prevents either country from going forward with any national missile defense system.

CNN: Kelly Wallace is a CNN White House correspondent.

The Camp David accords and the 1979 peace treaty cemented a rapprochement between the U.S. and Egypt that began in the mid-1970s as the country moved out of the Soviet orbit.

WSJ: Withholding U.S. Aid Carries Some Risks

The U.S. embrace in the fall of 1989 of a Soviet ploy by which it purported to retract an earlier linkage between a START treaty and the negotiation of additional limits on the U.S. Strategic Defense Initiative.

CENTERFORSECURITYPOLICY: At What Price Arms Control Agreements?

It would require a formal defense treaty between Israel and the United States, duly ratified with the approval of the U.S. Senate.

CENTERFORSECURITYPOLICY: Center for Security Policy | What hazards along the road to Damascus? Mission impossible